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Clone frappe_docker and switch directory

git clone https://github.com/frappe/frappe_docker
cd frappe_docker

Load custom apps through json

apps.json needs to be passed in as build arg environment variable.

export APPS_JSON='[
  {
    "url": "https://github.com/frappe/erpnext",
    "branch": "version-15"
  },
  {
    "url": "https://github.com/frappe/payments",
    "branch": "version-15"
  },
  {
    "url": "https://{{ PAT }}@git.example.com/project/repository.git",
    "branch": "main"
  }
]'

export APPS_JSON_BASE64=$(echo ${APPS_JSON} | base64 -w 0)

You can also generate base64 string from json file:

export APPS_JSON_BASE64=$(base64 -w 0 /path/to/apps.json)

Note:

  • url needs to be http(s) git url with personal access tokens without username eg:- http://{{PAT}}@github.com/project/repository.git in case of private repo.
  • add dependencies manually in apps.json e.g. add payments if you are installing erpnext
  • use fork repo or branch for ERPNext in case you need to use your fork or test a PR.

Build Image

buildah build \
  --build-arg=FRAPPE_PATH=https://github.com/frappe/frappe \
  --build-arg=FRAPPE_BRANCH=version-15 \
  --build-arg=PYTHON_VERSION=3.11.6 \
  --build-arg=NODE_VERSION=18.18.2 \
  --build-arg=APPS_JSON_BASE64=$APPS_JSON_BASE64 \
  --tag=ghcr.io/user/repo/custom:1.0.0 \
  --file=images/custom/Containerfile .

Note:

  • Use docker instead of buildah as per your setup.
  • FRAPPE_PATH and FRAPPE_BRANCH build args are optional and can be overridden in case of fork/branch or test a PR.
  • Make sure APPS_JSON_BASE64 variable has correct base64 encoded JSON string. It is consumed as build arg, base64 encoding ensures it to be friendly with environment variables. Use jq empty apps.json to validate apps.json file.
  • Make sure the --tag is valid image name that will be pushed to registry. See section below for remarks about its use.
  • Change --build-arg as per version of Python, NodeJS, Frappe Framework repo and branch
  • .git directories for all apps are removed from the image.

Push image to use in yaml files

Login to docker or buildah

buildah login

Push image

buildah push ghcr.io/user/repo/custom:1.0.0

Use Kaniko

Following executor args are required. Example runs locally in docker container. You can run it part of CI/CD or part of your cluster.

podman run --rm -it \
  -v "$HOME"/.docker/config.json:/kaniko/.docker/config.json \
  gcr.io/kaniko-project/executor:latest \
  --dockerfile=images/custom/Containerfile \
  --context=git://github.com/frappe/frappe_docker \
  --build-arg=FRAPPE_PATH=https://github.com/frappe/frappe \
  --build-arg=FRAPPE_BRANCH=version-14 \
  --build-arg=PYTHON_VERSION=3.10.12 \
  --build-arg=NODE_VERSION=16.20.1 \
  --build-arg=APPS_JSON_BASE64=$APPS_JSON_BASE64 \
  --cache=true \
  --destination=ghcr.io/user/repo/custom:1.0.0 \
  --destination=ghcr.io/user/repo/custom:latest

More about kaniko

Use Images

On the compose.yaml replace the image reference to the tag you used when you built it. Then, if you used a tag like custom_erpnext:staging the x-customizable-image section will look like this:

x-customizable-image: &customizable_image
  image: custom_erpnext:staging
  pull_policy: never

The pull_policy above is optional and prevents docker to try to download the image when that one has been built locally.

Make sure image name is correct to be pushed to registry. After the images are pushed, you can pull them to servers to be deployed. If the registry is private, additional auth is needed.