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crazylion lee

Pakyow Web Framework - 0 views

pakyow.org

web framework ruby

shared by crazylion lee on 10 Jun 16 - No Cached
  • crazylion lee on 10 Jun 16
     
    "Pakyow lets you build modern apps that don't break the web."
crazylion lee

Bootstrap Studio - 0 views

bootstrapstudio.io

bootstrap prototyping framework

shared by crazylion lee on 24 Mar 16 - No Cached
  • crazylion lee on 24 Mar 16
     
    "A powerful desktop app for creating responsive websites using the Bootstrap framework."
crazylion lee

Unique gradient generator - 0 views

gradient.quasi.ink

gradient background css generator

shared by crazylion lee on 03 Apr 16 - No Cached
  • crazylion lee on 03 Apr 16
     
    "This tool helps you to generate beautiful blurry background images that you can use in any project. It doesn't use CSS3 gradients, but a rather unique approach. It takes a stock image, extracts a very small area (sample area) and scales it up to 100%. The browser's image smoothing algorithm takes care of the rest. You can then use the image as an inline, base64 encoded image in any HTML element's background, just click Generate CSS button at the bottom of the app. Select source images from the gallery or use yours, the possibilities are endless."
crazylion lee

OpenTok | WebRTC Platform for Video, Voice and Messaging from TokBox - 0 views

tokbox.com

webrtc

shared by crazylion lee on 03 Apr 16 - No Cached
  • crazylion lee on 03 Apr 16
     
    "OpenTok is the leading WebRTC platform for embedding live video, voice, and messaging into your websites and mobile apps."
crazylion lee

Freeze - the ultimate Amazon Glacier file transfer client for Mac - 0 views

freezeapp.net

amazon glacier mac client

shared by crazylion lee on 27 Oct 15 - No Cached
  • crazylion lee on 27 Oct 15
     
    "Easy access to your archives from a convenient app"
crazylion lee

Best Rails image uploader - Paperclip vs. Carrierwave vs. Refile - Infinum - 0 views

infinum.co/...r-paperclip-carrierwave-refile

rails image uploader ruby

shared by crazylion lee on 25 Oct 15 - No Cached
  • crazylion lee on 25 Oct 15
     
    "Everybody that has ever implemented file upload by hand in a Rails app knows that it's no cakewalk, not to mention a major security risk. That's why we use gems to handle file upload for us! But often it's hard to decide which one to choose for your project."
crazylion lee

ndea/rockflow - 1 views

github.com/rockflow

rails workflow

shared by crazylion lee on 30 Nov 15 - No Cached
  • crazylion lee on 30 Nov 15
     
    "Create simple or complex workflows and rock your app!"
crazylion lee

Cakebrew - 0 views

www.cakebrew.com

mac homebrew gui

shared by crazylion lee on 20 Oct 15 - No Cached
  • crazylion lee on 20 Oct 15
     
    "The Mac App for Homebrew."
crazylion lee

AppImage | Linux apps that run anywhere - 1 views

appimage.org

linux app software appimage

shared by crazylion lee on 20 Mar 16 - No Cached
  • crazylion lee on 20 Mar 16
     
    製作像是window,mac上的執行檔 ""As a user, I want to download an application from the original author, and run it on my Linux desktop system just like I would do with a Windows or Mac application." "As an application author, I want to provide packages for Linux desktop systems, without the need to get it 'into' a distribution and without having to build for gazillions of different distributions.""
張 旭

Using Workflows to Schedule Jobs - CircleCI - 1 views

circleci.com/workflows

circleci CI deploy system

shared by 張 旭 on 25 Nov 18 - No Cached
  • A workflow is a set of rules for defining a collection of jobs and their run order.
  • Schedule workflows for jobs that should only run periodically.
  • run multiple jobs in parallel
  • ...37 more annotations...
  • rerun just the failed job
  • Builds without workflows require a build job.
  • Refer the YAML Anchors/Aliases documentation for information about how to alias and reuse syntax to keep your .circleci/config.yml file small.
  • workflow orchestration with two parallel jobs
  • jobs run according to configured requirements, each job waiting to start until the required job finishes successfully
  • requires: key
  • fans-out to run a set of acceptance test jobs in parallel, and finally fans-in to run a common deploy job.
  • Holding a Workflow for a Manual Approval
  • Workflows can be configured to wait for manual approval of a job before continuing to the next job
  • add a job to the jobs list with the key type: approval
  • approval is a special job type that is only available to jobs under the workflow key
  • The name of the job to hold is arbitrary - it could be wait or pause, for example, as long as the job has a type: approval key in it.
  • schedule a workflow to run at a certain time for specific branches.
  • The triggers key is only added under your workflows key
  • using cron syntax to represent Coordinated Universal Time (UTC) for specified branches.
  • By default, a workflow is triggered on every git push
  • the commit workflow has no triggers key and will run on every git push
  • The nightly workflow has a triggers key and will run on the specified schedule
  • Cron step syntax (for example, */1, */20) is not supported.
  • use a context to share environment variables
  • use the same shared environment variables when initiated by a user who is part of the organization.
  • CircleCI does not run workflows for tags unless you explicitly specify tag filters.
  • CircleCI branch and tag filters support the Java variant of regex pattern matching.
  • Each workflow has an associated workspace which can be used to transfer files to downstream jobs as the workflow progresses.
  • The workspace is an additive-only store of data.
  • Jobs can persist data to the workspace
  • Downstream jobs can attach the workspace to their container filesystem.
  • Attaching the workspace downloads and unpacks each layer based on the ordering of the upstream jobs in the workflow graph.
  • Workflows that include jobs running on multiple branches may require data to be shared using workspaces
  • To persist data from a job and make it available to other jobs, configure the job to use the persist_to_workspace key.
  • Files and directories named in the paths: property of persist_to_workspace will be uploaded to the workflow’s temporary workspace relative to the directory specified with the root key.
  • Configure a job to get saved data by configuring the attach_workspace key.
  • persist_to_workspace
  • attach_workspace
  • To rerun only a workflow’s failed jobs, click the Workflows icon in the app and select a workflow to see the status of each job, then click the Rerun button and select Rerun from failed.
  • if you do not see your workflows triggering, a configuration error is preventing the workflow from starting.
  • check your Workflows page of the CircleCI app (not the Job page)
  • 張 旭 on 25 Nov 18
     
    "A workflow is a set of rules for defining a collection of jobs and their run order."
張 旭

The Twelve-Factor App - 0 views

12factor.net/disposability

development application programming

shared by 張 旭 on 20 Feb 19 - No Cached
  • they can be started or stopped at a moment’s notice.
  • Processes should strive to minimize startup time
  • Processes shut down gracefully when they receive a SIGTERM signal from the process manager.
  • ...4 more annotations...
  • returning the current job to the work queue
  • all jobs are reentrant, which typically is achieved by wrapping the results in a transaction, or making the operation idempotent
  • Processes should also be robust against sudden death, in the case of a failure in the underlying hardware.
  • a twelve-factor app is architected to handle unexpected, non-graceful terminations
張 旭

The Twelve-Factor App - 1 views

12factor.net/build-release-run

development application programming

shared by 張 旭 on 20 Feb 19 - No Cached
  • separate build and run
  • The build stage is a transform which converts a code repo into an executable bundle known as a build.
  • the build stage fetches vendors dependencies and compiles binaries and assets.
  • ...7 more annotations...
  • The release stage takes the build produced by the build stage and combines it with the deploy’s current config.
  • is ready for immediate execution in the execution environment.
  • The run stage (also known as “runtime”) runs the app in the execution environment
  • strict separation between the build, release, and run stages.
  • the Capistrano deployment tool stores releases in a subdirectory named releases, where the current release is a symlink to the current release directory.
  • Every release should always have a unique release ID
  • Releases are an append-only ledger and a release cannot be mutated once it is created.
張 旭

The Twelve-Factor App - 0 views

12factor.net/processes

development application programming

shared by 張 旭 on 20 Feb 19 - No Cached
  • stateless processes
  • a production deploy of a sophisticated app may use many process types, instantiated into zero or more running processes.
  • Twelve-factor processes are stateless and share-nothing.
  • ...6 more annotations...
  • Any data that needs to persist must be stored in a stateful backing service, typically a database.
  • The memory space or filesystem of the process can be used as a brief, single-transaction cache.
  • wipe out all local (e.g., memory and filesystem) state
  • compiling during the build stage
  • “sticky sessions” – that is, caching user session data in memory of the app’s process and expecting future requests from the same visitor to be routed to the same process.
  • Sticky sessions are a violation of twelve-factor and should never be used or relied upon
張 旭

Queue Workers: How they work - Diving Laravel - 0 views

divinglaravel.com/queue-workers-how-they-work

php programming laravel queue worker

shared by 張 旭 on 02 Mar 19 - No Cached
  • define workers as a simple PHP process that runs in the background with the purpose of extracting jobs from a storage space and run them with respect to several configuration options.
  • have to manually restart the worker to reflect any code change you made in your application.
  • avoiding booting up the whole app on every job
  • ...7 more annotations...
  • instruct Laravel to create an instance of your application and start executing jobs, this instance will stay alive indefinitely which means the action of starting your Laravel application happens only once when the command was run & the same instance will be used to execute your jobs
  • This will start an instance of the application, process a single job,
  • and then kill the script.
  • Using queue:listen ensures that a new instance of the app is created for every job, that means you don't have to manually restart the worker in case you made changes to your code, but also means more server resources will be consumed.
  • the queue:listen command runs the WorkCommand inside a loop
  • The connection this worker will be pulling jobs from
  • The queue the worker will use to find jobs
  • 張 旭 on 02 Mar 19
     
    "define workers as a simple PHP process that runs in the background with the purpose of extracting jobs from a storage space and run them with respect to several configuration options."
crazylion lee

fastlane - iOS and Android Automation for Continuous Delivery - 1 views

fastlane.tools

automation ios android build

shared by crazylion lee on 08 Oct 16 - No Cached
  • crazylion lee on 08 Oct 16
     
    "stlane is the tool to release your iOS and Android app "
張 旭

Kubernetes Volumes Guide - Examples for NFS and Persistent Volume - 0 views

matthewpalmer.net/...ple-nfs-persistent-volume.html

kubernetes volume storage

shared by 張 旭 on 07 Jul 19 - No Cached
  • Persistent volumes exist beyond containers, pods, and nodes.
  • Volumes also let you share data between containers in the same pod.
  • data in that volume will be destroyed when the pod is restarted.
  • ...9 more annotations...
  • Persistent volumes are long-term storage in your Kubernetes cluster.
  • A pod uses a persistent volume claim to to get read and write access to the persistent volume.
  • NFS stands for Network File System – it's a shared filesystem that can be accessed over the network.
  • The NFS must already exist – Kubernetes doesn't run the NFS, pods in just access it.
  • what's already stored in the NFS is not deleted when a pod is destroyed. Data is persistent.
  • an NFS can be accessed from multiple pods at the same time. An NFS can be used to share data between pods!
  • volumes: - name: nfs-volume nfs: # URL for the NFS server server: 10.108.211.244 # Change this! path: /
  • volumeMounts: - name: nfs-volume mountPath: /var/nfs
  • Just add the volume to each pod, and add a volume mount to use the NFS volume from each container.
  • 張 旭 on 07 Jul 19
     
    "Persistent volumes exist beyond containers, pods, and nodes. "
張 旭

Kubernetes - Traefik - 0 views

docs.traefik.io/...kubernetes

kubernetes networking network ingress traefik

shared by 張 旭 on 04 Jul 19 - No Cached
  • allow fine-grained control of Kubernetes resources and API.
  • authorize Traefik to use the Kubernetes API.
  • namespace-specific RoleBindings
  • ...29 more annotations...
  • a single, global ClusterRoleBinding.
  • RoleBindings per namespace enable to restrict granted permissions to the very namespaces only that Traefik is watching over, thereby following the least-privileges principle.
  • The scalability can be much better when using a Deployment
  • you will have a Single-Pod-per-Node model when using a DaemonSet,
  • DaemonSets automatically scale to new nodes, when the nodes join the cluster
  • DaemonSets ensure that only one replica of pods run on any single node.
  • DaemonSets can be run with the NET_BIND_SERVICE capability, which will allow it to bind to port 80/443/etc on each host. This will allow bypassing the kube-proxy, and reduce traffic hops.
  • start with the Daemonset
  • The Deployment has easier up and down scaling possibilities.
  • The DaemonSet automatically scales to all nodes that meets a specific selector and guarantees to fill nodes one at a time.
  • Rolling updates are fully supported from Kubernetes 1.7 for DaemonSets as well.
  • provide the TLS certificate via a Kubernetes secret in the same namespace as the ingress.
  • If there are any errors while loading the TLS section of an ingress, the whole ingress will be skipped.
  • create secret generic
  • Name-based Routing
  • Path-based Routing
  • Traefik will merge multiple Ingress definitions for the same host/path pair into one definition.
  • specify priority for ingress routes
  • traefik.frontend.priority
  • When specifying an ExternalName, Traefik will forward requests to the given host accordingly and use HTTPS when the Service port matches 443.
  • By default Traefik will pass the incoming Host header to the upstream resource.
  • traefik.frontend.passHostHeader: "false"
  • type: ExternalName
  • By default, Traefik processes every Ingress objects it observes.
  • It is also possible to set the ingressClass option in Traefik to a particular value. Traefik will only process matching Ingress objects.
  • It is possible to split Ingress traffic in a fine-grained manner between multiple deployments using service weights.
  • use case is canary releases where a deployment representing a newer release is to receive an initially small but ever-increasing fraction of the requests over time.
  • annotations: traefik.ingress.kubernetes.io/service-weights: | my-app: 99% my-app-canary: 1%
  • Over time, the ratio may slowly shift towards the canary deployment until it is deemed to replace the previous main application, in steps such as 5%/95%, 10%/90%, 50%/50%, and finally 100%/0%.
crazylion lee

SQL Notebook - 0 views

sqlnotebook.com

sqlite mysql client editor

shared by crazylion lee on 14 May 17 - No Cached
  • crazylion lee on 14 May 17
     
    "SQL Notebook is a free Windows app for exploring and manipulating tabular data. It is powered by a supercharged SQLite engine, supporting both standard SQL queries and SQL Notebook-specific commands. Everything you need to answer analysis questions about your data, regardless of its format or origin, is built into SQL Notebook."
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