投稿時間:2021-12-15 05:34:39 RSSフィード2021-12-15 05:00 分まとめ(42件)

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AWS	AWS	How can I troubleshoot storage consumption in my Amazon RDS DB instance that’s running SQL Server?	https://www.youtube.com/watch?v=HcW9eU81MPg	How can I troubleshoot storage consumption in my Amazon RDS DB instance that s running SQL Server Skip directly to the demo For more details see the Knowledge Center article with this video Sandeep shows you how to troubleshoot storage consumption in your Amazon RDS DB instance that s running SQL Server Introduction Checking physical disk space usage Checking the current size of the tempdb Determining the amount of storage used by transaction logs Conclusion	2021-12-14 19:51:00
AWS	AWS	Intro to AWS Amplify | Amazon Web Services	https://www.youtube.com/watch?v=uRbGMZ9oPjw	Intro to AWS Amplify Amazon Web ServicesAWS Amplify is a set of purpose built tools and features that lets frontend web and mobile developers quickly and easily build full stack applications on AWS with the flexibility to leverage the breadth of AWS services as your use cases evolve With Amplify you can configure a web or mobile app backend connect your app in minutes visually build a web frontend UI and easily manage app content outside the AWS console Ship faster and scale effortlesslyーwith no cloud expertise needed Learn more about AWS Amplify at Subscribe More AWS videos More AWS events videos ABOUT AWSAmazon Web Services AWS is the world s most comprehensive and broadly adopted cloud platform offering over fully featured services from data centers globally Millions of customers ーincluding the fastest growing startups largest enterprises and leading government agencies ーare using AWS to lower costs become more agile and innovate faster AWS AmazonWebServices CloudComputing	2021-12-14 19:23:05
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	pythonを起動しようとするとエラーが出る	https://teratail.com/questions/373858?rss=all	pythonを起動しようとするとエラーが出るpythonを起動しようとすると、IDLEaposSnbspsubprocessnbspdidnapostnbspmakenbspconnectionnbspSeenbspthenbspStartupnbspfailurenbspsectionnbspofnbspthenbspidlenbspdoconlinenbspatnbspのようなエラーが発生してしまいます。	2021-12-15 04:48:12
海外TECH	Ars Technica	Google is building a new augmented reality device and operating system	https://arstechnica.com/?p=1820529	device	2021-12-14 19:42:08
海外TECH	MakeUseOf	How to Fix the "We Couldn't Create a New Partition" Error in Windows 10	https://www.makeuseof.com/windows-10-we-couldnt-create-a-new-partition-error/	partition	2021-12-14 19:15:12
海外TECH	MakeUseOf	7 Things You Need to Know About External GPUs	https://www.makeuseof.com/tag/everything-need-know-external-gpu/	external	2021-12-14 19:05:21
海外TECH	DEV Community	Go Channel Patterns - Drop	https://dev.to/b0r/go-channel-patterns-drop-4k19	Go Channel Patterns DropTo improve my Go Programming skills and become a better Go engineer I have recently purchased an excellent on demand education from Ardan Labs Materials are created by an expert Go engineer Bill Kennedy Bill Kennedy MIA goinggodotnet Check out my conversation with MGallagher He tells a really interesting story about how he cultivated a business being a technical recruiter One of the best I know ardanlabs buzzsprout com … PM Dec I have decide to record my process of learning how to write more idiomatic code following Go best practices and design philosophies This series of posts will describe channel patterns used for orchestration signaling in Go via goroutines Drop PatternThe main idea behind Drop Pattern is to have a limit on the amount of work that can be done at any given moment We have a buffered channel that provides signaling semantica number of worker goroutinesa manager goroutine that takes the work and sends it to the worker goroutineif there is more work than worker goroutines can process and buffered channel is full manager goroutine will drop the work ExampleIn Drop Pattern we have a limited amount of work capacity we can do in a day We have predefined number of employees that will do the work worker goroutines We also have a manager main goroutine that generates work or gets work from some predefined list of work Manager notifies employee about the work via communication channel ch Employee gets the work from the communication channel ch Communication channel ch is capable of holding a limited amount of work in the queue buffered channel We say a channel has a limited capacity Once channel ch is full manager can t send new work and instead decides to DROP that unit of work and tries to send a new unit of work to the channel maybe this time there is some space on the ch Manager will do that as long as there is available work to do Use CaseGood use case for this pattern would be a DNS server A DNS server has a limited capacity or limited amount of requests that it can process at any given moment If there are more requests sent to the DNS server we can decide to overload and kill the server or to DROP new requests until DNS server has capacity to process the request Feel free to try the example on Go Playgroundpackage mainimport fmt time func main capacity max number of active requests at any given moment const cap buffered channel is used to determine when we are at capacity ch make chan string cap a worker goroutine e g an employee go func for range loop used to check for new work on communication channel ch for p range ch fmt Println employee received signal p amount of work to do const work range over collection of work one value at the time for w w lt work w select case allow us to perform multiple channel operations at the same time on the same goroutine select signal send work into channel start getting goroutines busy doing work e g manager sends work to employee via buffered communication channel if buffer is full default case is executed case ch lt paper fmt Println manager sent signal w if channel buffer is full drop the message allow us to detect that we are at capacity e g manager drops the unit of work default fmt Println manager dropper data w once last piece of work is submitted close the channel worker goroutines will process everything from the buffer close ch fmt Println manager sent shutdown signal time Sleep time Second Resultgo run main gomanager sent signal manager sent signal manager sent signal manager sent signal manager sent signal manager dropper data manager dropper data employee received signal paperemployee received signal paper employee received shutdown signal employee received signal paperemployee received signal paper ConclusionIn this article drop channel pattern was described In addition simple implementation and use case were provided Readers are encouraged to check out excellent Ardan Labs education materials to learn more Resources Ardan LabsCover image by Igor Mashkov from PexelsFan out picture	2021-12-14 19:40:44
海外TECH	DEV Community	Dev Environments: An Essential Tool for Software Quality	https://dev.to/tinystacks/dev-environments-an-essential-tool-for-software-quality-gpd	Dev Environments An Essential Tool for Software QualityThere are many steps on the road to DevOps maturity Recently I ve been covering some of the most basic concepts such as stacks stages and Infrastructure as Code Today I ll stick to these foundational steps and talk about on demand dev stacks I ll focus on why dev stacks are perhaps the most important first step teams can take on their DevOps journey Your Application On DemandFirst let s recap some concepts from my last article One of the great benefits of moving to a cloud platform like AWS is Infrastructure as Code With Infrastructure as Code you can spin up the architecture your application needs network topology Web servers databases file storage load balancers etc by programming it Before Infrastructure as Code standing up a new version of an app usually meant manually configuring and tending to every component of the system It was tedious and error prone Defining your architecture in a programming language like Python or in a declarative language like AWS CloudFormation means you can deploy and re deploy your application over and over consistently and without fear Stacks Stages and EnvironmentsBefore I dive in let s get clear on our terminology Using Infrastructure as Code you can deploy a stack your application plus all its supporting infrastructure quickly and easily Once you can deploy a stack you can deploy multiple stacks stages for various purposes e g a single stack for production plus other stacks for development and testing People in software development talk a lot about environments e g production environments vs dev environments In our view environment encompasses a specific runtime for your application that may or may not be hosted in the cloud For many development teams dev environments reside on a developer s desktop or laptop Production Stacks and Dev StacksMany teams are drawn to Infrastructure as Code to streamline their production deployments And indeed repeatable production employments can greatly enhance application quality Standing up new production stacks opens the door to numerous advanced deployment strategies such as canary testing and blue green deployments But Infrastructure as Code can improve quality before your team even pushes to production You can use the same code you use to stand up a production stacks to stand up development stacks as well Why a Dev Stack Personal dev environments are becoming increasingly standardized with tools such as Gitpod and Codespaces As your team moves more toward standing up stacks the difference between personal dev environments and dev stacks starts to fade Dev stacks allow development teams to test their changes end to end before they re ever pushed to production Using Infrastructure as Code teams are assured that what they re testing is apart from a few small config changes identical to what will run in production Having a central dev stack for your team is great However giving developers their own fully deployed stacks makes it even easier to test changes before they ever hit main With individual dev stacks your developers can deploy individual changes faster This leads to greater flexibility and reliability over grouping many changes together into a single deployment In addition when building on cloud services testing against a live service is better than attempting to replicate that service on a laptop The Official Dev StageIf your team hasn t started using dev stacks yet the first step is to make a shared stack This will be the start of your application pipeline A pipeline is a series of stages through which you can push code changes with each stage gradually widening your user base On large and long running projects pipelines can involve multiple stages and become fairly complicated However a simple pipeline consisting of just a dev and a prod stage is a solid start for teams just dipping their toes into the DevOps waters To create a dev stage you first need to create a full application stack using a language such as AWS CloudFormation Your stack should define everything that your application needs to run If you already have this for your production stack then you re almost there You may need to make a few adjustments based on how you want to launch your dev stack You have a couple of choices here Launch in Same AWS Account as ProdThe simplest strategy is launching your dev stack in the same stack as your prod account To do this you ll need to parameterize your Infrastructure as Code deployment so that it uses different prefixes or suffixes for resource names This will avoid naming collisions with your prod stack AWS CloudFormation makes this easy through the use of parameters And actually you don t even need to define your own parameters You can use CloudFormation s pseudo parameters predefined metadata parameters to implement this quickly and easily For example assume you are defining an S bucket name and want to make sure it s distinct from your production bucket Using CloudFormation you can use the name of your stack as a prefix for the bucket name In the example below YAML we use a regular CloudFormation stack parameter AppVersion and the full stack name as a pseudo parameter to construct a unique name BucketName Sub AWS StackName AppVersion Launch in Separate AWS AccountHowever it s not a great idea to mix stacks in a single account Ideally you want your production stack hosted in its own AWS account This allows you to place additional restrictions on access to production Such restrictions are almost a necessity if your team handles personally identifiable information on customers in prod If you launch your dev stack in a separate account you don t need to worry about name conflicts The only thing you should have to parameterize in this context are publicly facing values such as your application s DNS endpoint A Dev Stack Per DeveloperCreating a central dev stack is definitely a huge step forward However there s still room for improvement A central dev stack is fine for integrating changes that are getting close to production quality Ideally however you want devs to be able to test in their own stacks before committing to a common Git branch This reduces merge conflicts and helps ensure high quality code early in the development process If you already have code for launching a dev stack launching individual dev stacks for developers shouldn t involve much additional work The major issue is tracking stacks and controlling costs Giving your entire dev team unfettered access to an AWS account even a non production one can leave you scrambling to control your cloud spend One approach is to use AWS Control Tower Control Tower works in conjunction with AWS Organizations which enables the creation and management of multiple AWS accounts under a single master account You can use Control Tower in conjunction with AWS Service Catalog to offer your dev stack as a service catalog offering that developers can install into their accounts You can even go one step farther and deploy the stack automatically as part of the account vending process Defining Your Branching Strategy with Dev StacksAs I discussed in my last article it s important when creating your CI CD pipeline to work out a branching strategy One of the simplest strategies is to use feature branches for development work In feature branching devs create a branch per feature Developers use pull requests to request integration of their work into main Feature branching has several benefits By using pull requests other team members can review and vet a set of changes before they are integrated into the main branch The entire process keeps your project s main branch clean and in a buildable deployable state Whatever branching strategy you choose there s little doubt that giving developers their own fully deployed stacks makes it easier to test changes before they ever hit main The result is faster deployments and more reliable code TinyStacks Makes Dev Stacks EasyHere at TinyStacks we re all about helping you deploy and manage your stacks in the cloud We make it easy to transfer from a personal dev environment on your laptop into a development stage with a stack consistent with your production stack Contact us today to find out more	2021-12-14 19:39:39
海外TECH	DEV Community	Top 4 Deep Learning Networks You Should Know	https://dev.to/imagescv/top-4-deep-learning-networks-you-should-know-1f06	Top Deep Learning Networks You Should KnowDeep learning has become a very popular topic in recent years Its popularity is due to its ability to train neural nets and perform classification tasks with high accuracy even without the need for human intervention Deep learning networks can also be trained on their own which means they don t require pre labeled data like other types of machine learning algorithms Here are deep neural networks that you should know about Convolutional Neural Network CNN The first deep learning network you should know about is the Convolutional Neural Network CNN CNNs are used for image recognition and have been shown to be very effective in this domain They are also used for other tasks such as natural language processing Recurrent Neural Network RNN The second deep learning network you should know about is the Recurrent Neural Network RNN RNNs are used for tasks such as language modeling and machine translation They are also effective at predicting the next word in a sentence Long Short Term Memory LSTM The third deep learning network you should know about is the Long Short Term Memory LSTM network LSTMs are used for tasks such as speech recognition and natural language processing They are also effective at predicting the next word in a sentence Deep Belief Network DBN The fourth deep learning network you should know about is the Deep Belief Network DBN DBNs are used for tasks such as image recognition and natural language processing They are also effective at predicting the next word in a sentence As you can see there are many different types of deep learning networks that you can use for various tasks So which one should you use Well that depends on the task at hand But in general it s a good idea to try out several different types of deep learning networks and see which one gives you the best results images cv provide you with an easy way to build image datasets K categories to choose fromConsistent folders structure for easy parsingAdvanced tools for dataset pre processing image format data split image size and data augmentation Visit images cv to learn more	2021-12-14 19:38:58
海外TECH	DEV Community	The hidden trap of debugger	https://dev.to/rmarioo/the-hidden-trap-of-debugger-gfi	The hidden trap of debugger Debugging is like being the detective in a crime movie where you are also the murderer Filipe Fortes How it started a false illusionWhen i had my first programming experience i was not aware of the possibility of using a debugger It happened that i had to understand why my software was not working as expected so the only way i had to understand what was going on was to add some print statements all around the code Later I learnt that i can use the debugger as a tool to inspect variables and understand the status of my software in a specific time I thought I can troubleshoot without adding new code I will be faster than before How is goingAfter years working on many and more complex projects i almost totally change my mind and realised that actually the debugger slowed me down To be clear i still think that in few specific simple cases it is worth to leverage the debugger but in complex cases i think there are better alternatives What happened I was thinking that debugger was the only way to troubleshoot issues so i used it all the times If i come back to the my most stressful working times almost all of them were moment in which i was trying to understand the code spending hours in long debugging sessions inspecting tons of line of code variables and stack trace Can you remember your most stressful working time Can you remember if in those moment you were in long debugging sessions Probably you were trying to escape the legacy code matrix and you were stuck on the first phase the understanding phase Where is the trap I will share now why in my opinion in complex use cases using the debugger actually slow us down and increase our stress and cognitive load Give up to learn the code Using the debugger is like using a navigator for your car It actually helps you but sometimes for some reason it dint work and when it happens you are totally lost because you don t know the path Jumping soon to debugger prevent you to learn the code and to improve your reading and reverse engineering skills Those are skill that you can acquire only reading more and more code written by someone else The more you do the more you get better to understand it An remember there are cases in which you cannot rely use the debugger so it is better to have an alternative Manual actions Inspecting a lot of lines of code and variables require manual and very repetitive action like put breakpoint enter inside function go to next line inspect variable add watches etc Manual action is much slower then automatic action that could performed by computers Keeping in mind a lot of variable values and application state require high cognitive load and energy Repetitive actions Imagine that you have the following type hierarchydata class University val departments List lt Department gt data class Department val courses List lt Course gt data class Course val students List lt Student gt data class Student val name String val country Country enum class Country ITALY SPAIN FRANCE and you need to check more than one time if an university has students from ItalyEvery time you need to inspect the country of student in university you need to do at least action like five clicks inspect variable take notes or remember their values If you have to it times you will have to do click or debugger inspections An alternative approach could be write a function likefun logItalianPresenceInUniversity university University that prints what you want to check Few additional code to write and just click to execute and check the result Lack of trust in tests Someone said A bug is just a missing test The purpose of our tests is to help us to define the behaviour of our system and help us to find issues An alternative way to debugging to detect an issue is to reproduce it by adding a new test Now if we found a bug thanks to debugger we can call in trap to think test suite did not help me so i will do the fix and forget the tests So we may enter in this dangerous loop A sample case microservice with many data transformationsImagine a service exposing some functionality to the user that need to call other services to fulfil the requestIn complex cases there are many data adaptation between the controller and the call to the other servicesNow let s suppose that there is a bug in that service and some information that arrives from the external service is not sent back to the controller and the user Your task is to spot it and fix it and you need to deep dive in many adaptation layers Which options you have Understand and document every little detail of the codeThe safest option is to read carefully the code trying to understand it taking notes and spot the missing point This option is good but may require a lot of time and effort to deep dive in the code structure In legacy systems or when you don t have much time it can become an endless process On other hand it on long term it improve your skills to read the code Use the application with debuggerWe could put a breakpoint on controller and on client and use the application In our case having a lot of adaptation layers this will be take a lot of time with debugging session and so big effort For non trivial cases this approach is probably the worst one Use the application with probes in codeHere you can guess what is the idea You can write some small probe functions to automatically check what would manually ask the debugger to do Remember the logItalianPresenceInUniversity function described above My personal approach in this cases is identify the start and end of code section to checkin this case the controller and the client Automatize checks by writing probes functions Example add function that print if a data structure contains the data that i am looking for Put probes in code and create a git patch for local changes Run the application and check the probes Repeat step until issue is found A binary search algorithm can limit the tries Rollback local changes when done In complex scenario i find this approach faster incremental and it require less cognitive load Issue is found now what Regardless how i found my preference is highlight the issue by writing a new test and watching it fail Fix the text ConclusionWhen we have to find issues in code we have many option on the strategy to follow Using the debugger is only one of them and in my opinion in some cases is not the best approach Having more than one option we can choose the one that fit more our case Writing a new test can be hard in some cases you may need to break dependencies to isolate the section of code as described in working effectively with legacy code	2021-12-14 19:28:41
海外TECH	DEV Community	Improving Application Availability with Pod Readiness Gates	https://dev.to/martinheinz/improving-application-availability-with-pod-readiness-gates-29pb	Improving Application Availability with Pod Readiness GatesMaking sure your application running in Kubernetes is available and ready to serve traffic can be very easy with Pod liveness and readiness probes However not all application are built to be able to use probes or in some cases require more complex readiness checks which these probes simply cannot perform Is there however any other solution if Pod probes just aren t good enough Readiness GatesThe answer is obviously yes It s possible to implement complex custom readiness checks for Kubernetes Pods with help of Readiness Gates Readiness gates allow us to create custom status condition types similar to PodScheduled or Initialized Those conditions can then be used to evaluate Pod readiness Normally Pod readiness is determined only by readiness of all the containers in a Pod meaning that if all containers are Ready then whole is Ready too If readiness gate is added to a Pod then readiness of a Pod gets determined by readiness of all containers and status of all readiness gate conditions Let s look at an example to get a better idea of how this work kind Pod spec readinessGates conditionType www example com some gate status conditions type Ready status False lastProbeTime null lastTransitionTime T Z type ContainersReady status True lastProbeTime null lastTransitionTime T Z type www example com some gate status False lastProbeTime null lastTransitionTime T ZThe above manifest shows a Pod with single readiness gate named www example com some gate Looking at the conditions in status stanza we can see that the ContainersReady condition is True meaning that all containers are ready but the custom readiness gate condition is False and therefore also Pod s Ready condition must be False If you use kubectl describe pod on such a pod you would also see the following in the Conditions section Conditions Type Status www example com gate False Initialized True Ready False ContainersReady True PodScheduled True RationaleWe now know that it s possible to implement these additional readiness conditions but are they really necessary though Shouldn t it be enough to just leverage health checks using probes In most cases probes should be sufficient there are however situations where more complex readiness checks are necessary Probably the most common use case for readiness gates is to sync up with external system such as cloud provider s load balancer Example of that would be AWS LoadBalancer or Container native load balancing in GKE In these cases readiness gates allow us to make the workloads network aware Another reason to use readiness gates is if you have external system that can perform more thorough health checks on your workloads using for example application metrics This can help integrate your system into Kubernetes workload lifecycle without requiring changes to kubelet It also allows the external system to subscribe to Pod condition changes and act upon on it possibly applying changes to remediate any availability issues Finally readiness gates can be a lifesaver if you have legacy application deployed to Kubernetes which is not compatible with liveness or readiness probes yet its readiness can be checked in a different way For complete rationale for this feature check out the original KEP in GitHub Creating First GateEnough talking let s create our first readiness gate All we need to do is add readinessGates stanza in Pod spec with the name of our desired condition kubectl run nginx image nginx overrides spec readinessGates conditionType www example com gate apiVersion vkind Podmetadata name nginxspec readinessGates conditionType www example com gate containers name nginx image nginx latestAdding the gate is easy but updating is little more complicated kubectl subcommands don t support patching of object status therefore we cannot use kubectl patch set the condition to True False Instead we have to use PATCH HTTP request sent directly to API server The simplest way to access cluster API server is using kubectl proxy which allows us to reach the server on localhost kubectl proxy port amp curl s http localhost curl k H Accept application json http localhost api v namespaces default pods nginx statusIn addition to starting the proxy in the background we also used curl to check if the server is reachable and queried the server for manifest status of the pod we will be updating Now that we have a way to reach the API server let s try updating the Pod status Every readiness gate status condition defaults to False but let s start by explicitly setting it Explicitly set status to False curl k H Content Type application json patch json X PATCH http localhost api v namespaces default pods nginx status data op add path status conditions value lastProbeTime null lastTransitionTime T Z status False type www example com gate kubectl get pods o wideNAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATESnginx Running s kind control plane lt none gt kubectl describe pod nginx Readiness Gates Type Status www example com gate False Conditions Type Status www example com gate False Initialized True Ready False ContainersReady True PodScheduled TrueIn this snippet we first used PATCH request against API proxy server to apply JSON patch to status condition fields of the Pod In this case we used add operation because the status was not set yet Additionally you can also see that when we list the pods with o wide the READINESS GATES column shows indicating that the gate is set to False Same can be also seen in output of kubectl describe Next let s see how we can toggle the value to True curl k H Content Type application json patch json X PATCH http localhost api v namespaces default pods nginx status data op replace path status conditions value type www example com gate status True kubectl get pods o wideNAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATESnginx Running s kind control plane lt none gt Similarly to previous code snippet we again use PATCH request to update the condition this time however we used replace operation specifically on the first condition in the list as specified by status conditions Be aware though that the custom condition doesn t necessarily have to be first in the list so if you will be using some script to update conditions then you should first check which condition you should be updating Using Client LibrariesUpdating condition with curl like we saw above works for simple scripts or quick manual updates but generally you will probably need more robust solution Considering that kubectl is not an option here your best bet will be one of the Kubernetes client libraries For demonstration purposes let s see how it can be done in Python pip install kubernetesimport timefrom kubernetes import client configconfig load kube config pod manifest apiVersion v kind Pod metadata name nginx spec readinessGates conditionType www example com gate containers image nginx name nginx v client CoreVApi response v create namespaced pod body pod manifest namespace default while True response v read namespaced pod name nginx namespace default if response status phase Pending break time sleep print Pod is Running First thing we need to do is authenticate to the cluster and create the Pod The authentication part is in this case done using config load kube config which loads your credentials from kube config in general though it s better to use service accounts and tokens to authenticate to the cluster sample for that can be found in docs As for the second part Pod creation that s pretty straightforward we just apply the pod manifest and then wait until it s status phase changes from Pending With the Pod running we can continue by setting its status to the initial False value response v patch namespaced pod status name nginx namespace default body op add path status conditions value lastProbeTime None lastTransitionTime T Z status False type www example com gate pod v read namespaced pod status name nginx namespace default for i condition in enumerate pod status conditions if condition type Ready gate index condition iprint f ReadinessGate gate type has readiness status gate status Reason gate message ReadinessGate Ready has readiness status False Reason the status of pod readiness gate www example com gate is not True but False In addition to setting the status we also queried the cluster for the current Pod status after the update We looked up the section that corresponds to the Ready condition and printed its status And finally we can flip the value to True with the following code pod v read namespaced pod status name nginx namespace default for i condition in enumerate pod status conditions if condition type www example com gate gate index condition iprint f ReadinessGate gate type has readiness status gate status Reason gate message ReadinessGate www example com gate has readiness status False Reason None response v patch namespaced pod status name nginx namespace default body op replace path f status conditions index value lastProbeTime None lastTransitionTime T Z status True type www example com gate The code here is very similar to the example earlier this time however we look for condition of type www example com gate we verify its current state with print and then apply the change using replace operation to the condition listed at index Closing ThoughtsBoth the shell scripts and Python code above demonstrate how you can go about implementing readiness gates and their updates In real world application you will probably need a more robust solution though The ideal solution for this would be custom controller which would watch pods that have readinessGate stanza set to relevant conditionTypes The controller would be then able to update the condition s based on the observed state of the pod whether it s based on custom pod metrics external network state or whatever else If you re thinking about implementing such controller then you can get some inspiration from existing solutions such as the AWS and GKE load balancers mentioned earlier or the now archived kube conditioner	2021-12-14 19:24:56
海外TECH	DEV Community	How to become a web developer in 2022, with coach Gandalf	https://dev.to/colocodes/how-to-become-a-web-developer-in-2022-with-coach-gandalf-fl1	How to become a web developer in with coach GandalfIn this blog post I ll be discussing why you shouldn t trust on new year s resolutions how overrated motivation is tools to help you succeed in the path of learning web development and the road I took and recommend as of December taking to become a Web Developer I will ask coach Gandalf for his opinions on different topics and he will pour his wisdom and bluntness over us during the whole post The truth about new year s resolutions‍ Hey coach Gandalf what do you feel about new year s resolutions ‍ ️ My dear little human most of us have been there a new year is coming we feel this is our chance to stop some bad habits and start new ones a perfect body and a perfect wallet are just around the corner January st we start doing that thing we planned on doing A week later we find the first excuses on why we are permitted to skip a couple of days or eat that tasty cake or buy that nice mechanical keyboard our third one Two weeks later we find ourselves sliding into bad habits once more telling us that they are not as bad after all Our motivation explodes into the air a few moments after liftoff like a failed rocket launch You don t believe me Take a look at this article describing why only of people stick to their resolutions for a full year ‍ Hm OK maybe that s a bit too blunt don t you think I guess you are cranky because you ran out of tobacco for your pipeweed or something But motivation ‍ I m motivated But sometimes I don t feel like it ‍ ️ Allow me to be blunt once more motivation is overrated According to this article by James Clear the guy who wrote the great book Atomic Habits describing how motivation works motivation often comes after starting a new behaviour not before You don t feel like it You don t feel in the mood to start typing code going through that Udemy course writing that blog post Guess what we all feel like that most of the time What we need to do is just start We can say to ourselves I will just do minutes of this and then I can drop it Chances are that we are going to stick for more than minutes and the motivation will start growing after we started working on the thing we just don t feel like Don t focus on the objective focus on the system instead‍ Coach I love setting goals ‍ ️ Do you know that people that reach their goals and people that don t have the same goals in common Laughs while exhaling smoke from his pipe I guess I m a fan of James Clear because he s back with another great article Forget About Setting Goals Focus on This Instead Goals can provide direction and even push you forward in the short term but eventually a well designed system will always win Having a system is what matters Committing to the process is what makes the difference ‍ ️ Don t think too much about your objective your goal Instead focus your full attention on the day to day tasks you need to do in order to achieve that goal Our system could be a series of habits that enable us to learn to program Waking up early and studying programming taking some time each day to write code bundling habits from Atomic Habits stopping chasing rabbit holes on the Internet limiting our social network use doing regular exercise and sleeping well to improve our cognitive stamina are just some examples of what we could do ‍ ️ In the end learning to program and becoming who we want to become does not depend on a new year starting or on an ambitious goal It depends on what we are doing day in and day out to support our identity we are now a programmer Tools to help us maintain consistency along the way‍ This looks that is going to be hard ‍ ️ This journey is not going to be easy nor short I can promise you moments of struggle uncertainty and despair But don t panic Not all who wander are lost Here are some tools that are going to help you succeed in this path Grit a ferocious determination to put in the work Being able to be resilient and hardworking Know in a very deep way what is what you want From the book Grit A growth mindset the view you adopt for yourself profoundly affects the way you lead your life The hand you re dealt is just the starting point for development The growth mindset is based on the belief that your basic qualities are things you can cultivate through your efforts From the book Mindset A strong identity and habits that support that identity habits shape your identity and vice versa What type of person do you want to be A programmer What habits do a programmer have Will he she them be binging Squid Game or learning React to build an app From the book Atomic Habits Be able to do deep work the ability to perform activities in a state of distraction free concentration that pushes your cognitive capabilities to their limit From the book Deep Work ‍ ️ If you would like to learn a bit more about these tools I would like to share with you four book summaries made by Brian Johnson GritMindsetAtomic HabitsDeep Work You can find all these books in your favourite bookstore of course The web development path‍ Thanks for the useful tips coach Gandalf Where should I start my web development journey ‍ ️ Now that we have established how we can improve our chances of succeeding in learning web development let s talk about what I think is the best path to follow There are many tools and technologies to learn and you can take a look at a road map here I think the best option is to start with the Front end as it s the path that will have a not so steep learning curve compared with DevOps or Back end and high demand for jobs ‍ ️ A word of caution many times you ll feel drawn to free resources You should be careful Many of the free resources are not as deep or thorough as you need them to be They will leave gaps in your knowledge and you will lose time filling them I think the best approach is to commit yourself to a comprehensive course even if you have to pay for it I m a strong believer that Udemy is the best option for this Pick a topic you are interested in learning and search for Udemy courses about it Read comments reviews and recommendations There is always a Udemy sale so you shouldn t spend more than for a full course that usually has hours of content ‍ ️ One more thing try not to jump around too much Stick with the technology and content you are learning until the course or project is finished This will prevent gaps from forming in your knowledge and help you avoid tutorial hell st step Git‍ So what is the first step ‍ ️ Starting with Git will allow you to become familiar with the terminal and the way in which software is built You can create repositories from day something that will look great on your GitHub profile It will allow you to keep track of all your code and projects and I think i s a great way to get your feet wet with the world of programming in general Steps Udemy course Git Complete The definitive step by step guide to Git Start your journey by taking this course You can implement the concepts learned here during the rest of your student and professional path The importance of building stuff‍ ️ During your journey you will be tempted to absorb information as fast as possible to achieve that highly desired outcome become a web developer But please don t just work on the theory As soon as you start learning HTML and CSS and JavaScript and React later on you should be building your own projects They can be small just a button medium a website or big a full web application Build build and then build some more and keep track of them on GitHub This is how the information you are absorbing is going to be transformed into actual knowledge nd step Bootcamp optional ‍ Should I take a Bootcamp or just focus on each topic separately ‍ ️ If you are not in a hurry and you have spare time taking a coding Bootcamp will teach you the overall technologies involved in the web development journey You are not going to learn those topics deeply though which means that you will have to study them after the Bootcamp Most good Bootcamps are lengthy and require you to absorb many different topics in a cramped time frame ‍ ️ You have two main options when choosing a Bootcamp doing it online or doing in in person Usually online ones are cheaper but require a greater commitment on your part in order to finish them In person Bootcamps are more expensive but it s easier to finish them because you have paid a lot of money and you have to go to a specific place at a certain date and time Another pro for the in person ones is that you will actually meet people in the same boat as you are ‍ I agree I actually took a Bootcamp course on Udemy and I found it very useful to gain an overall knowledge of the things involved in the web development process The Bootcamp I took back in the day had lectures spread across hours of content This translated into almost hours of actual study I used a time tracker app to measure it As I was working and studying at the same time those hours spread over to months Initially I estimated at the most half of that time so beware Optional step Udemy course The Web Developer Bootcamp This is the BootCamp I took and I can highly recommend it Colt is a great teacher and the course has many projects that you can build OrUdemy course The Complete Web Development Bootcamp I haven t taken Angela s course but I have read many positive comments from people not only on the Udemy page recommending it Either one your choose you can t go wrong rd step HTML and CSS‍ OK I now know Git and maybe I have finished a BootCamp What s next ‍ ️ You still don t know what you don t know You need to dive deep into HTML and CSS In this step you will learn about the correct structure an HTML document should have accessibility WAI ARIA new HTML elements you should use and which ones to avoid how to style an HTML document CSS custom properties good practices grid flexbox etc ‍ ️ If you previously took a BootCamp chances are that you didn t learn these topics in a thorough way so here is where we are diving deep into these concepts There are many many resources from which you can choose to learn HTML and CSS so do your research and choose wisely I would suggest to you to choose good teaching materials and not just what s free or fashionable ‍ I agree with you Gandalf I remember that I almost entered a paralysis by analysis stage when researching where or how I could get good quality teaching materials for HTML and CSS I ended up selecting a free course a book and a Udemy course and I feel that those resources were some of the best I could have selected Steps freeCodeCamp Responsive Web Design Certification Start by taking this free course so you can have a basic and general idea about HTML and CSS Book Learning Web Design A Beginner s Guide to HTML CSS JavaScript and Web Graphics th Edition After finishing the freeCodeCamp course pick up this book It is highly recommended because it will teach you important concepts such as how the Internet works HTML CSS best practices an introduction to JavaScript and much more Udemy course Advanced CSS and Sass Flexbox Grid Animations and More Only take this course after having covered freeCodeCamp course and the Learning Web Design book if you have spare time and want to dive deeper into CSS and SASS th step JavaScript‍ I now know how to build a repository of my code create an HTML document and use CSS to style it What now ‍ ️ The logical projection from here is learning JavaScript It s the universal programming language for websites and it is supported by all main web browsers This is where the core of your journey should be focused on and the stepping stone that you ll use to learn libraries and frameworks in the future You should take your time in learning JavaScript and avoid jumping into a library or framework without feeling comfortable with JavaScript first ‍ I couldn t agree more I m now working professionally with React but I find myself using JavaScript code and concepts learned in this stage of my studies all the time Steps freeCodeCamp JavaScript Algorithms and Data Structures Certification Start by taking this free course so you can have a basic and general idea about JavaScript Udemy course The Complete JavaScript Course From Zero to Expert After finishing freeCodeCamp s course take this one on Udemy It s the best course I have ever taken on Udemy and it will not only teach you JavaScript in depth but also programming concepts and best practices This is a must do Book Eloquent JavaScript rd edition You can read this book in digital format for free or you can buy it in physical format from Amazon It s a great book but a bit too technical for beginners If you still have spare time read it if you don t want to spend more time in this section skeep it and revisit it in the future Most of the concepts covered in the book are also covered in the previous Udemy course th step React‍ I feel like Neo when he said I Know Kung Fu ‍ ️ Unfortunately chances are that by now you were too focused on learning by absorbing information What you should be doing by now is putting that knowledge into practice This step is ideal for that Now you are going to learn JavaScript s libraries and frameworks You have a bunch of them to choose from and the one you select should depend on what is being used in your area a quick job search will tell you that The top three you can choose from are JavaScript libraries ReactJavaScript frameworks VueAngularThis might help you to get an idea of how they compare among themselves in terms of interest Source ‍ ️ I recommend choosing React as it is very used worldwide and you can use it to design mobile or desktop applications in the future using React Native if that s something you are interested in Steps freeCodeCamp Front End Development Libraries Certification Start by taking this freeCodeCamp course to get a feel of React You will learn how web applications are built professionally in the real world Udemy course React The Complete Guide incl Hooks React Router Redux Maximilian will teach you and reinforce programming concepts as well as React in depth This is a very good up to date course and I can recommend it th step Job Ready‍ OK so I have spent several months learning all of this and building many projects by myself with Google s help What should I do next ‍ ️ Once you have finished all these courses and built some applications and projects of your own you are now ready to start applying for Front end Development jobs Now you should be building your portfolio writing a good resume and LinkedIn profile and reviewing the most important concepts learned so far ‍ ️ The whole path to get to this point will take you from months to years or more depending on your previous knowledge and how well you are learning the concepts you are presented with th step Going Back end‍ ️ The Front End Developer path is far from over but by now you should feel comfortable enough to jump into the Back end But that is a story for some other time ‍ Thanks coach Gandalf I wish you were real so I could high five you ‍ ️ Remember this you are the hero of your story Ask yourself what would a hero do in my situation How does a hero endure these obstacles slay these dragons ️NEWSLETTER If you want to hear about my latest articles and interesting software development content subscribe to my newsletter TWITTER Follow me on Twitter	2021-12-14 19:21:21
海外TECH	DEV Community	ASMR coding [ Node/ Express/ Pug Engine Web Design ]	https://dev.to/bekbrace/asmr-coding-node-express-pug-engine-web-design--50ml	ASMR coding Node Express Pug Engine Web Design This is a No Talk coding session in my study in Poland on a rainy night with my cup of hot chocolate hot chocolate coding Christmas spirit Joy This is a coding video where you can chill have your hot cold beverage and code along with me this awesome website using three different technologies Node jsExpress frameworkPug template engine HTML preprocessor Just coding quietly on my mechanical keyboard Razer Ornata V and I invite you to join me Hope you enjoy guys Social Media Facebook ​​​​ Twitter Instagram GitHub profile ​​​Website Reach out info bekbrace com Tools used in video Microphone used in recording Blue YetiTo check it out on Amazon Coding on Razer Ornata V keyboardTo check it out on Amazon SupportJoin this channel to get access to perks ORBecome a Patron	2021-12-14 19:13:37
海外TECH	DEV Community	Soft UI Dashboard - Start fast with Bootstrap 5, Django and Docker	https://dev.to/sm0ke/soft-ui-dashboard-start-fast-with-bootstrap-5-django-and-docker-49mc	Soft UI Dashboard Start fast with Bootstrap Django and DockerHello Coders This article presents an open source Django starter that uses Bootstrap for the frontend layer and Docker for deployment automation Django Soft Dashboard comes with all the bare minimum essentials required by a new simple dashboard powered by Django authentication integrated UI and deployment support For newcomers Django is a leading framework actively supported and versioned by programming experts and open source enthusiasts Thanks for reading Here are the links for fast runners Django Soft UI Dashboard LIVE DemoDjango Soft UI Dashboard source code The permissive MIT license unlocks the usage for unlimited hobby amp commercial products and eLearning activities Product FeaturesIn order to provide something useful and usable for developers the codebase is provided with the latest stable Django version unopionated structure and a production ready layer powered by Docker Up to date dependencies Django LTSSCSS compilation simple Gulp tooling DB Tools SQLite Django Native ORMSession Based Authentication Forms validationDeployment Docker Gunicorn NginxSupport via Github issues tracker and Discord How to use the productProbably the most easier way to start the product is to execute the Docker setup that is basically a one line command Step Clone download sources from Github git clone cd django soft ui dashboardStep Start the app in Docker docker compose up buildAt this point we should be able to access the app in the browser register new users and access the private pages provided by the app The Docker LayerDocker is a popular virtualization software that executes our application using a cross platform sandboxed environment In other words we can hope for a successful execution of our app on Windows Ubuntu or CentOS without taking into account any OS specificities during the product deployment The architecture Django App managed by Gunicorn WSGI ServerGuninorn starts on port Nginx as a proxy server exposes the public port routes the client requests to inner port Dockerfile does the following upgrade the PIP installerinstall app deps listed on requirements txtMigrate the database aka create tables call Gunicorn to start the appStart Nginx and listen for new connections If all goes well the app can be accessed on http localhost and the guest users are redirected to authenticate The manual build involves the classic steps recommended for all Python apps create a virtual environmentinstall the dependencies setup migrate the database start the app using a development server Let s do this Step Clone the sources git clone cd django soft ui dashboardStep Create a virtual environment virtualenv env source env bin activateStep Install modules Install modules pip install r requirements txtStep Migrate Database aka create tables python manage py makemigrations python manage py migrateStep Start the app using Django embedded server Start the application development mode python manage py runserver By default Django starts on port but we can easily change this with the following command Start the app custom port python manage py runserver At this point the app runs with LIVE reload and we can write new code and track all errors in real time Thanks for reading For more resources and support AMA in the comments I m here on Dev almost daily Free Dashboards index provided for Django Flask and ReactFollow me on Twitter for OSS posts only	2021-12-14 19:10:50
Apple	AppleInsider - Frontpage News	App Store version of Xcode 13.2 causing problems for developers	https://appleinsider.com/articles/21/12/14/app-store-version-of-xcode-132-causing-problems-for-developers?utm_medium=rss	App Store version of Xcode causing problems for developersA bug in the Mac App Store version of Xcode is causing problems for developers who are reporting package errors and issues with compiling projects Xcode has a bug on specific versionsApple released Xcode version on Monday alongside iOS and other software updates However some developers began noticing a bug in the version available from the Mac App Store Read more	2021-12-14 19:35:28
Apple	AppleInsider - Frontpage News	Last-minute gift ideas: Here's what to get family and friends when you're short on time	https://appleinsider.com/articles/21/12/14/last-minute-gift-ideas-heres-what-to-get-family-and-friends-when-youre-short-on-time?utm_medium=rss	Last minute gift ideas Here x s what to get family and friends when you x re short on timeTime is running out if you want to buy a holiday gift for friends and relatives Here are some ideas for last minute purchases you can secure to give to your loved ones for Christmas While the last few weeks have given people ample opportunity to get all of their holiday shopping completed there are always some who leave things to the last minute With so little time left on the clock and supply chain shortages affecting holiday shopping in general finding the perfect gift can be a tall order with only days left before Christmas Read more	2021-12-14 19:04:11
Apple	AppleInsider - Frontpage News	How to set up Legacy Contacts in iOS 15	https://appleinsider.com/articles/21/12/14/how-to-set-up-legacy-contacts-on-ios-15?utm_medium=rss	How to set up Legacy Contacts in iOS You re going to die someday Here s how to set up a Legacy Contact in iOS and iPadOS to allow a trusted contact access to your Apple account after you re gone Apple s Digital Legacy initiative makes it easier to manage how your account is treated after your death Dealing with a death is traumatic and online accounts complicate an already bad situation for the survivors With accounts being secured and data encrypted it can be difficult to plan out your digital affairs so that important information in your online accounts gets handed down to people who need it Read more	2021-12-14 19:04:16
海外TECH	Engadget	Apple reinstates mask requirements across all US stores	https://www.engadget.com/apple-reinstates-mask-requirements-us-195629617.html?src=rss	Apple reinstates mask requirements across all US storesAmid a resurgence of COVID cases in the US Apple will now require all customers to wear a mask when they visit its stores across the country The company said it would also enforce occupancy limits The move comes after Apple recently lifted mask requirements at more than of its stores nationwide ahead of the Thanksgiving weekend “Amid rising cases in many communities we now require that all customers join our team members in wearing masks while visiting our stores Apple said in a statement to Bloomberg In a memo obtained by the outlet Apple said it made the decision “after reviewing the latest trends in COVID case counts across the US The recently sequenced omicron variant is causing new concerns about the direction of the pandemic Per CNBC the World Health Organization said on Tuesday the new variant is spreading faster than any previous strain of COVID nbsp “Even if omicron does cause less severe disease the sheer number of cases could once again overwhelm unprepared health systems WHO Director General Tedros Adhanom Ghebreyesus warned As of Tuesday the omicron strain represents approximately percent of all COVID cases in the US up from percent the week prior The unpredictable nature of the pandemic has forced Apple to frequently change its retail policies as the situation has evolved The timing of this latest surge could affect the company s bottom line as it looks to close out another busy holiday season	2021-12-14 19:56:29
Cisco	Cisco Blog	Building On Our Success for the Opportunities Ahead	https://blogs.cisco.com/partner/building-on-our-success-for-the-opportunities-ahead	Building On Our Success for the Opportunities AheadIf is any indication will continue to be challenging at least in the beginning But at the same time it also marks a period of potential growth profitability and an opportunity to reach higher	2021-12-14 19:00:59
海外TECH	WIRED	Antibiotic Use in US Farm Animals Was Falling. Now It’s Not	https://www.wired.com/story/antibiotic-use-in-us-farm-animals-was-falling-now-its-not	animal	2021-12-14 19:18:08
ニュース	BBC News - Home	MPs back Covid passes in England despite huge Tory rebellion	https://www.bbc.co.uk/news/uk-politics-59659851?at_medium=RSS&at_campaign=KARANGA	labour	2021-12-14 19:46:34
ニュース	BBC News - Home	Scots urged to limit socialising to three households	https://www.bbc.co.uk/news/uk-scotland-59655829?at_medium=RSS&at_campaign=KARANGA	christmas	2021-12-14 19:41:04
ニュース	BBC News - Home	UK removes all 11 countries from red list	https://www.bbc.co.uk/news/business-59653236?at_medium=RSS&at_campaign=KARANGA	restrictions	2021-12-14 19:22:58
ニュース	BBC News - Home	Covid: 'I've had 3,200 bookings cancelled at my pubs'	https://www.bbc.co.uk/news/business-59649233?at_medium=RSS&at_campaign=KARANGA	christmas	2021-12-14 19:29:37
ニュース	BBC News - Home	Covid: Omicron probably in most countries, WHO says	https://www.bbc.co.uk/news/world-59656385?at_medium=RSS&at_campaign=KARANGA	warns	2021-12-14 19:38:40
ニュース	BBC News - Home	Covid: 'Quarantine hotel fiasco has cost us £5,500'	https://www.bbc.co.uk/news/business-59650268?at_medium=RSS&at_campaign=KARANGA	feeling	2021-12-14 19:21:17
ニュース	BBC News - Home	British Olympian Christie retires from speed skating	https://www.bbc.co.uk/sport/winter-sports/59650586?at_medium=RSS&at_campaign=KARANGA	sport	2021-12-14 19:28:13
ニュース	BBC News - Home	Covid passports: Where will I need a pass and how do I get one?	https://www.bbc.co.uk/news/explainers-55718553?at_medium=RSS&at_campaign=KARANGA	passport	2021-12-14 19:16:23
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ビジネス	東洋経済オンライン	｢バイデンフレーション｣がアメリカ民主党を直撃 中間選挙に向けて共和党が勢いに乗っている | アメリカ | 東洋経済オンライン	https://toyokeizai.net/articles/-/476274?utm_source=rss&utm_medium=http&utm_campaign=link_back	dollartr	2021-12-15 04:30:00