Alpine-Ng

Container for Alpine Linux + Angular CLI

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This image containerizes the ng command line tool for Angular along with its NPM dependencies to initialize, scaffold and maintain angular applications.

Based on Alpine Linux from my alpine-nodejs image with the s6 init system overlayed in it.

The image is tagged respectively for the following architectures,

• armhf
• x86_64 (retagged as the latest )

armhf builds have embedded binfmt_misc support and contain the qemu-user-static binary that allows for running it also inside an x64 environment that has it.

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Get the Image

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Pull the image for your architecture it's already available from Docker Hub.

# make pull
docker pull woahbase/alpine-ng:x86_64

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Run

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If you want to run images for other architectures, you will need to have binfmt support configured for your machine. multiarch, has made it easy for us containing that into a docker container.

# make regbinfmt
docker run --rm --privileged multiarch/qemu-user-static:register --reset

Without the above, you can still run the image that is made for your architecture, e.g for an x86_64 machine..

This images already has a user alpine configured to drop privileges to the passed PUID/PGID which is ideal if its used to run in non-root mode. That way you only need to specify the values at runtime and pass the -u alpine if need be. (run id in your terminal to see your own PUID/PGID values.)

Before you run..

• Mount the project directory (where package.json is) at /home/alpine/project. Mounts PWD by default.

• Ng runs under the user alpine.

Running make gets a shell.

# make
docker run --rm -it \
  --name docker_ng --hostname ng \
  -e PGID=1000 -e PUID=1000 \
  -c 256 -m 512m \
  -v $PWD:/home/alpine/project \
  -v /etc/localtime:/etc/localtime:ro \
  -v /etc/hosts:/etc/hosts:ro \
  -p 4200:4200 \
  --entrypoint /bin/bash \
  woahbase/alpine-ng:x86_64

The usual ng stuff. e.g init projects with

# make new
docker run --rm -it \
  --name docker_ng --hostname ng \
  -e PGID=1000 -e PUID=1000 \
  -c 256 -m 512m \
  -v $PWD:/home/alpine/project \
  woahbase/alpine-ng:x86_64 \
  new

run the dev server,

# make serve
docker run --rm -it \
  --name docker_ng --hostname ng \
  -e PGID=1000 -e PUID=1000 \
  -c 256 -m 512m \
  -v $PWD:/home/alpine/project \
  -v /etc/localtime:/etc/localtime:ro \
  -v /etc/hosts:/etc/hosts:ro \
  -p 4200:4200 \
  woahbase/alpine-ng:x86_64 \
  serve

build the project with

# make prod
docker run --rm -it \
  --name docker_ng --hostname ng \
  -e PGID=1000 -e PUID=1000 \
  -c 256 -m 512m \
  -v $PWD:/home/alpine/project \
  woahbase/alpine-ng:x86_64 \
  build --prod

to use npm scripts from package.json, change the entrypoint to npm, e.g

# start the dev server of angular starter project
docker run --rm -it \
  --name docker_ng --hostname ng \
  --entrypoint npm \
  -e PGID=1000 -e PUID=1000 \
  -c 256 -m 512m \
  -v $PWD:/home/alpine/project \
  woahbase/alpine-ng:x86_64 \
  start

Stop the container with a timeout, (defaults to 2 seconds)

# make stop
docker stop -t 2 docker_ng

Removes the container, (always better to stop it first and -f only when needed most)

# make rm
docker rm -f docker_ng

Restart the container with

# make restart
docker restart docker_ng

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Shell access

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Get a shell inside a already running container,

# make shell
docker exec -it docker_ng /bin/bash

set user or login as root,

# make rshell
docker exec -u root -it docker_ng /bin/bash

To check logs of a running container in real time

# make logs
docker logs -f docker_ng

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Development

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If you have the repository access, you can clone and build the image yourself for your own system, and can push after.

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Setup

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Before you clone the repo, you must have Git, GNU make, and Docker setup on the machine.

git clone https://github.com/woahbase/alpine-ng
cd alpine-ng

You can always skip installing make but you will have to type the whole docker commands then instead of using the sweet make targets.

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Build

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You need to have binfmt_misc configured in your system to be able to build images for other architectures.

Otherwise to locally build the image for your system. [ARCH defaults to x86_64, need to be explicit when building for other architectures.]

# make ARCH=x86_64 build
# sets up binfmt if not x86_64
docker build --rm --compress --force-rm \
  --no-cache=true --pull \
  -f ./Dockerfile_x86_64 \
  --build-arg ARCH=x86_64 \
  --build-arg DOCKERSRC=alpine-nodejs \
  --build-arg PGID=1000 \
  --build-arg PUID=1000 \
  --build-arg USERNAME=woahbase \
  -t woahbase/alpine-ng:x86_64 \
  .

To check if its working..

# make ARCH=x86_64 test
docker run --rm -it \
  --name docker_ng --hostname ng \
  -e PGID=1000 -e PUID=1000 \
  woahbase/alpine-ng:x86_64 \
  --version

And finally, if you have push access,

# make ARCH=x86_64 push
docker push woahbase/alpine-ng:x86_64

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Maintenance

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Sources at Github. Built at Travis-CI.org (armhf / x64 builds). Images at Docker hub. Metadata at Microbadger.

Maintained by WOAHBase.