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VanDavv
VanDavv

Reputation: 836

Pass folder between builds - GitLab CI with Docker

I want to have a separate docker container that build's my app, and when it finishes, it passes a 'dist' catalog to second container, which is deployed.

I tried using the artifacts and "volume" instruction, but it seems not to work. Anybody nows any work-around or solution?

.gitlab-ci.yml

stages:
  - build
  - push
  - deploy


build_app:
  stage: build
  script:
    - ./deployment/build.sh
  tags:
    - shell
  artifacts:
    paths:
    - /dist

push_app:
  stage: push
  script:
    - ./deployment/push.sh
  tags:
   - shell
  dependencies:
  - build_app

deploy_app:
  stage: deploy
  script:
    - ./deployment/deploy.sh
  tags:
    - shell

build.sh

#!/bin/bash
set -e

echo "Building application"

docker build -t build:latest -f "deployment/build.docker" .

build.docker

RUN mkdir /app
ADD . /app/

WORKDIR /app

//code that creates /dist folder

VOLUME ["/app/dist"]

push.sh

#!/bin/bash
set -e
docker build -t push:latest -f "deployment/push.docker" .

#and other stuff here

push.docker

// the first catalog is not there
ADD /app/dist /web

Upvotes: 0

Views: 4251

Answers (2)

Yan Foto
Yan Foto

Reputation: 11388

What you are looking for is caching:

cache is used to specify a list of files and directories which should be cached between builds.

So you would define something like this in the root of your gitlab-ci.yml:

cache:
  untracked: true
  key: "$CI_BUILD_REF_NAME"
  paths:
    - dist/

build_app: ...

The dist/ will then be cached among all builds.

Upvotes: 2

Menzo Wijmenga
Menzo Wijmenga

Reputation: 1131

Your issue is that you're not using the VOLUME command correctly in build.docker. If you boot build:latest image, the contents of /app/dist are copied to the container directory on the host file system. That is not equal to your current working directory.

Here's a fixed version:

build.sh

#!/bin/bash
set -e

echo "Building application"

docker build -t build:latest -f "deployment/build.docker" .

# Remove old dist directory
rm -rf ${PWD}/dist

# Here we boot the image, make a directory on the host system ${PWD}/dist and mount it into the container.
# After that we copy the files from /app/dist to the host system /dist
docker run -i -v ${PWD}/dist:/dist -w /dist -u $(id -u) \
    build:latest sh cp /app/dist /dist

push.docker

// the first catalog is not there
COPY /dist /web

Upvotes: 1

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