Netns Docker For Mac

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*Nets Docker For Mac Download
*Nets Docker For Mac Catalina
*Nets Docker For Mac Os
*Nets Docker For Mac Installer
Not a member of Pastebin yet? DEBU0265 Setting bridge mac address to 02:42:8f:50:4b:fc DEBU0265. Expected behaviour Faster response loading time Actual behaviour Network connection load response time is well above 1min in most cases Information Diagnostic ID: 8527377B-F84E-4E32-8661-0A677D5A24DF Docker for Mac: 1.12.0-a (Build 11213.Chapter 1 - Vagrantfile, Virtual Box, and Docker for Mac Installation
*Download Vagrant Up for Machttps://www.vagrantup.com/downloads.html
*Download Virtual Box for Machttps://www.virtualbox.org/wiki/Downloads
*Download Docker Toolbox for Machttps://www.docker.com/products/docker-toolbox
*Download Docker for Machttps://www.docker.com/products/docker#/mac
*Forum for Docker https://forums.docker.com/c/docker-for-mac
*Guide for Docker for Machttps://docs.docker.com/docker-for-mac/
*Examples for Docker for Machttps://docs.docker.com/docker-for-mac/examples/
*Setup Docker Compose and MySQLhttps://docs.docker.com/compose/rails/Check Docker ClientCreate CoreOS Docker host using Vagrant VM by:
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Note: Use of Vagrant seed for docker development is an alternative approach to using docker-machine.
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Cloning coreos-vagrant Git Repo into host machine directory docker-host
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Making the following changes to the Vagrantfile
*Expose Docker TCP connection port in config.rb of coreos-vagrant directory
*Note that Vagrantfile creates a CoreOS VM using VirtualBox software hypervisor
*Note that Vagrantfile parses config.rb containing a set of options configuring CoreOS cluster
*Generate user-data file containing #cloud-config to simplify provisioning of CoreOS VM using built-in coreos-cloudinit
*Startup and SSH using VirtualBox Provider (default Vagrant provider)
*Note vagrant up triggers vagrant to download CoreOS image (if necessary) and relaunch instance
*Note vagrant ssh connects to VM from directory with VagrantfileUse Vagrant VM:
*Setup shell environment so local Docker client may communicate with Docker daemon on VM
*Show Vagrant environments on host machine
*Check Docker environment variables
*Important: Restart Bash terminal to avoid error connecting to Docker Daemon
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Connect to Docker Daemon (running on port 2375). Note use unencrypted only in Development.
*Important Note: Docker Daemon of Docker for Mac or Docker Toolbox already runs in a Linux VM, so you do not need to (and cannot) run it manually with dockerd. It is already running in the whale icon is in the top bar. https://github.com/docker/docker/issues/27102
*Connect to Shell on Vagrant VMShare Folders between Vagrant VM (CoreOS) and Host (OSX). IDE may now be used to edit files on Vagrant VM.
*Enable synced folders by editing Vagrantfile as follows (uncommenting the config.vm.synced_folder line of code)
*Restart Vagrant VM
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Note: If an exports invalid error occurs then open and validate the contents of /etc/exports on the Host (OSX)
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Check that files synchronise between these foldersInteractive Docker Containers within Vagrant VM (Docker host):
*From the shell of Vagrant VM, test download a Docker Image from Docker Hub for the base distribution specified using Docker Daemon(i.e. Ubuntu, Fedora, and CentOS). A Docker Container inside Vagrant VM filesystem is created based on the downloaded Docker Image.The new Docker Container has a network, IP addresss, and bridge to communicate with localhost.The command and flags run by Docker on the new container launch an interactive Bash shell instance of the host (i.e. Ubuntu) in it that we are logged into as root user.
*List all available Linux commands, aliases, built-ins, keywords, and functions
*Show Docker Container Host Entries
*Show Docker Container IP address
*Show Docker Container Running Processes
*Install software package on Docker Container
*Exit Docker Container to return to Vagrant VM
*List Docker Containers (both stopped and running) from within Vagrant VM. Note: Those that were run with --rm flag are not shown.
*List Docker Containers (only last 2 that were stopped or running)
*Create Container (but not Run), Start, Restart, Re-Attach (to process using original Options, i.e. command, flags), and Delete Docker Container
Important Note: Press Enter after Re-Attach to Container (otherwise it hangs)Daemonized (non-Interactive) Docker Containers within Vagrant VM (Docker host) for running apps and services:
*Create and run a Daemonized Docker Container within Vagrant. Flags detach the container to the background and performs a command until process stopped.
*View under the hood of the Docker Container by debugging the last few log entries
*Monitor (follow) the Docker Container log entries using the -f flag (similar to the tail -f binary) with timestamps and without reading previous entries to the log file
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Note: Transport Layer Security (TLS) is a cryptographic protocol that provides communications security over a network (predecessor SSL)
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Inspect processes (and PIDs) of Daemonized Docker Container
*Statistics (CPU, memory, network, storage I/O, metrics) of Daemonized Docker ContainerNets Docker For Mac Download
*Background Processes (using detach -d flag) started on already running containers are executed (management, monitoring, or maintenance) with Process Owner in Daemonized Docker Container
*Note: docker exec works on already running containers, otherwise error returned:
*Inspect Docker Container (config info, names, commands)
*Selectively Inspect Docker Container (using GoLang template with -f flag https://golang.org/pkg/text/template/)
*View Docker Container storage location on Vagrant VM (i.e. CoreOS). Start shell as superuser firstNets Docker For Mac CatalinaLog CollectionChapter 2 - Dockerfile, Docker Images
*Docker Container based on a Docker Image (based on a public image or custom) stored in Repository of a Registry
*Docker Image has filesystem layers with mapping to each build step
*Docker Image Management storage backend communicates with underlying Linux filesystem to build layers into usable image
*Docker Image Management storage backends include fast Copy-on-Write (CoW)
*Docker Image Management storage backends supported include AUFS, BTRS, Device-mapper, and overlayfs
*Docker Hub is the default Registry
*Top-Level Repositories are managed by Docker and vendors (i.e. ubuntu)
*Top-Level Docker Images offer bare runtime to run the distribution
*User Repositories are by individual developers (i.e. ltfschoen/ruby)
*Tag comprises a series of image layers in single repository (representative of version control)
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Docker Image is built upon the Union Mount of its parent image layers above the base image (each layer is a filesystem)
*Show Docker Images downloaded from repositories that contain layers and metadata
*Go to local storage location of Docker Images
*Pull specific Tag (i.e. 3.4) for Top-Level Docker Image
*Search Docker Hub for publicly available Docker Images that may already be pre-installed with applications
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Login/Logout of Docker HubDocker Build Command (using Dockerfile)Docker File
*Dockerfile and docker build is repeatable, transparent, and idempotent, and so is preferred over docker commit
*Dockerfile instructs how Docker Image is to be assembled using application code.
*Dockerfile uses DSL with instructions paired with arguments on each line of code
*Dockerfile lines of code are processed from top to bottom
*Each line of code creates a new Docker Image Layer.
*Only layers deviating from previous Docker Image Layer must be built
*Dockerfile docker build process is:1) Docker runs an initial new Docker Container from the base Docker Image (FROM)2) Docker executes instruction (first line of code) inside initial Docker Container3) Docker runs a docker commit to commit initial Docker Image Layer4) Docker runs a second new Docker Container based on the initial Docker Image Layer5) Docker executes instruction (next line of code) inside second Docker Container6) Docker runs a docker commit to commit second Docker Image Layer7) Docker runs a third new Docker Container based on the second Docker Image Layer8) Docker repeats steps 5) to 7) for subsequent lines of code to build up a Docker Container
*Docker Container that is built houses the application (i.e. Rails-based app) with all dependencies
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Debug errors when building from Dockerfile by running Docker Container from the last successfully created Docker Image
*Dockerfile FROM
*Default instance is base Linux image
*Custom Docker Registry offers official framework Docker Images and Tags (i.e. Node.js). Docker Image base inherits from Docker Container defined by FROM (i.e. node:0.10.33 specifically locks Docker Image base to specific Ubuntu Linux image running Node 0.10.33)
*Dockerfile MAINTAINER - provides author field metadata in Docker Image
*Dockerfile LABEL - provides KV pairs of metadata in Docker Image for search purposes. Find with docker inspect
*Dockerfile USER
*Important: Docker Containers run processes on the host machine kernel. Do not be run as root user in Production for security
*Dockerfile ENV - set shell environment variables used in build process on the image
*Dockerfile RUN
*execute instruction/command to append new Docker Image Layer on the current Docker Image
*start and create file structure, and install dependencies
*commit the new Docker Image Layer if command successful
*Important: Reduce build time by abstracting common RUN processes (i.e. updates) into code lines (Docker Image layers) of Base Image
*Important: Reduce rebuild time by ordering commands with code imports at the end (as all layers after introduced change are rebuilt)
*Important: Combine logically grouped commands into single Dockerfile code line since each instruction creates a new Docker Image layer (i.e. use ADD to import scripts and required supporting files from local filesystem into image)
*Dockerfile WORKDIR - changes working directory in image for remaining build instructions
*Dockerfile CMD - final instruction launches process to run in Docker Container
*Dockerfile EXPOSE - ports Docker Container listens to. docker run flag (--expose) opens these ports at runtime
*Important: Single function in CMD to easy horizontal scaling of individual functions in architectureBuild Custom Container
*Build new Custom Container based on Top-Level Container that we build from a Top-Level ImageNets Docker For Mac OsExample - Static Web Server
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Create build environment (build context) for Docker to upload to Docker Daemon when build is run.
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Note: Previously we configred the Vagantfile to synchronise the following folders between Vagrant VM (CoreOS) and Host (OSX):
*~/code/docker-host-coreos-share (Host)
*/home/core/share (Vagrant VM)
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Create Dockerfile that builds a Docker Image where the Docker Container is a static web server
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Note: Perform these on Host machine since folders are synchronised Yandex browser download mac.
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Build Dockerfile into Docker Image.Tagging with repository/image_name:version.Use -f flag to specify directory within build context containing Dockerfile.
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Note: docker build must be run on the Vagrant VM (CoreOS), otherwise the following error message appears Cannot connect to the Docker daemon. Is the docker daemon running on this host?
*Check Docker Images updated
*Check Docker Image history (Docker Image Layers are shown)Docker Image Templates using Build Cache
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Docker uses cache and re-builds from earliest image layer change.Bypass using --no-cache flag.
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Dockerfile should have template at top of file with package repositories and updates so cache is hit.Launch Container using Docker Image
*-d flag detaches in background for long processes (i.e. Nginx daemon)
*-p flag manages network ports published by Docker at container runtime to the host machine, with options including:
*Mapping of randomly assigned Docker Host port(i.e. 32768 to 61000) to Port 80 on Docker Container
*Mapping of specific Docker Host port (i.e. 8080) direct binding to Port 80 on Docker Container(i.e. sudo docker run -d -p 8080:80 --name static_web ltfschoen/static_web_8080 nginx -g ’daemon off;’)
*Mapping of specific Interface (i.e. 127.0.0.1) and specific Docker Host port (i.e. 8080) direct binding to Port 80 on Docker Container(i.e. sudo docker run -d -p 127.0.0.1:8080:80 --name static_web ltfschoen/static_web_8080_i127_0_0_1:v1 nginx -g ’daemon off;’)
*Mapping of specific Interface (i.e. 127.0.0.1) and random Docker Host port to Port 80 on Docker Container(i.e. sudo docker run -d -p 127.0.0.1::80 --name static_web ltfschoen/static_web_random_i127_0_0_1 nginx -g ’daemon off;’)
*Mapping of random Docker Host port to Port 80 on Docker Container and publish additional ports specified with EXPOSE instructions(i.e. sudo docker run -d -P --name static_web_all ltfschoen/static_web_all nginx -g ’daemon off;’)
*Note: Random port is assigned when not specified
*Note: Only one Docker Container may be bound to a specific port on host machine
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Note: Bind UDP ports by appending to port binding /udp
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Command to run (i.e. nginx -g ’daemon off;’) launches Nginx in foreground to run web server
*Check Port mapping on host machine assigned to a given port 80 of a Docker Container ID/name
*Selectively Inspect Docker Container
*Connect to the Docker Container housing the Nginx web server using cURL
*Attempt with the following:
*Destroy Docker Containers and re-build Docker Image with different Dockerfilewith change to EXPOSE 80 (not necessary to delete the Docker Container with docker rmi ltfschoen/static_web:v1 though due to caching)Nets Docker For Mac Installer
*Check port 80 is correctly binded by Nginx
*Check IP Table rules that are in place
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Attempt Bridged Adapter option
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Error below when running vagrant up after changing from NAT to Bridge Adapter in VirtualBox GUI > Settings > Network > Adapter 1 because Adapter 3 is already set to Bridge Adapter, and making following changes to Vagrantfile:
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Solved with vagrant halt, started VM from Virtual Box GUI, then goto bar menu and chose quit VM. https://github.com/mitchellh/vagrant/issues/1809Note: This solution causes another cascading problem:
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Error encountered when run vagrant up again
*Solved by having both Public and Private in Vagrantfilehttps://github.com/mitchellh/vagrant/issues/2748http://stackoverflow.com/questions/24984020/unable-to-connect-to-vagrant-apache-on-one-computer
*Note: Still unable to get response from VM when curl from Host to Docker Container IP/port (i.e. curl 172.18.0.2:8080)
Misc Links:http://stackoverflow.com/questions/33814696/how-to-connect-to-a-docker-container-from-outside-the-host-same-network-windohttps://www.virtualbox.org/manual/ch06.htmlhttp://stackoverflow.com/questions/25433488/vagrant-can-not-ping-guest-machine-from-the-hosthttp://serverfault.com/questions/495914/vagrant-slow-internet-connection-in-guesthttps://friendsofvagrant.github.io/v1/docs/bridged_networking.html
TODO Default Router approach:http://superuser.com/questions/752954/need-to-do-bridged-adapter-only-in-vagrant-no-nathttps://www.vagrantup.com/docs/networking/public_network.html
TODO Key Link:Alternative using Docker Compose instead of Vagrant https://hharnisc.github.io/
In progress up to CMD section on page 99Other LinksOther
*Note: Docker Toolbox is for older Macs.
*Uninstall Docker Toolbox. Download shell script and run with sudo bash uninstall.shhttps://github.com/docker/toolbox/blob/master/osx/uninstall.shTODO
*Relevant folders:
*/Users/Ls/code/docker-host-coreos-share/ltfschoen/static_web
*
/Users/Ls/code/docker-host/coreos-vagrant
*Learn Chef with Docker
*Control Docker Daemon with: dockerd
*Apache Kafka (broker) and Apache Zookeeper (run using Docker)
*https://github.com/HackerHappyHour/docker-toolbox-vagrant
*https://docs.docker.com/engine/tutorials/dockerimages/#building-an-image-from-a-dockerfile
*https://docs.docker.com/engine/reference/builder/
*https://www.percona.com/blog/2016/05/11/quick-start-mysql-testing-using-docker-mac/
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