frappe_docker/docs/container-setup/02-build-setup.md

This guide walks you through building Frappe images from the repository resources.

Prerequisites

• git
• docker or podman
• docker compose v2 or podman compose

Install containerization software according to the official maintainer documentation. Avoid package managers when not recommended, as they frequently cause compatibility issues.

Clone this repo

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

Define custom apps

If you dont want to install specific apps to the image skip this section.

To include custom apps in your image, create an apps.json file in the repository root:

[
  {
    "url": "https://github.com/frappe/erpnext",
    "branch": "version-15"
  },
  {
    "url": "https://github.com/frappe/hrms",
    "branch": "version-15"
  },
  {
    "url": "https://github.com/frappe/helpdesk",
    "branch": "main"
  }
]

Then generate a base64-encoded string from this file:

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

Build the image

Choose the appropriate build command based on your container runtime and desired image type. This example builds the layered image with the custom apps.json you created.

Docker:

docker build \
 --build-arg=FRAPPE_PATH=https://github.com/frappe/frappe \
 --build-arg=FRAPPE_BRANCH=version-15 \
 --build-arg=APPS_JSON_BASE64=$APPS_JSON_BASE64 \
 --tag=custom:15 \
 --file=images/layered/Containerfile .

Podman:

podman build \
 --build-arg=FRAPPE_PATH=https://github.com/frappe/frappe \
 --build-arg=FRAPPE_BRANCH=version-15 \
 --build-arg=APPS_JSON_BASE64=$APPS_JSON_BASE64 \
 --tag=custom:15 \
 --file=images/layered/Containerfile .

Build args

Arg	Purpose
Frappe Framework
FRAPPE_PATH	Repository URL for Frappe framework source code. Defaults to https://github.com/frappe/frappe
FRAPPE_BRANCH	Branch to use for Frappe framework. Defaults to version-15
Custom Apps
APPS_JSON_BASE64	Base64-encoded JSON string from apps.json defining apps to install
Dependencies
PYTHON_VERSION	Python version for the base image
NODE_VERSION	Node.js version
WKHTMLTOPDF_VERSION	wkhtmltopdf version
bench only
DEBIAN_BASE	Debian base version for the bench image, defaults to bookworm
WKHTMLTOPDF_DISTRO	use the specified distro for debian package. Default is bookworm

env file

The compose file requires several environment variables. You can either export them on your system or create a .env file.

cp example.env custom.env

Edit custom.env to customize variables for your setup. The template includes common variables, but you can add, modify, or remove any as needed. See env-variables.md for detailed descriptions of all available variables.

Creating the final compose file

Combine the base compose file with appropriate overrides for your use case. This example adds MariaDB, Redis, and exposes ports on :8080:

docker compose --env.file example.env \
    -f compose.yaml \
    -f overrides/compose.mariadb.yaml \
    -f overrides/compose.redis.yaml \
    -f overrides/compose.noproxy.yaml \
    config > compose.custom.yaml

This generates compose.custom.yaml, which you'll use to start all containers. Customize the overrides and environment variables according to your requirements.

Note

: podman compose is just a wrapper, it uses docker-compose if it is available or podman-compose if not. podman-compose have an issue reading .env files (Issue) and might create an issue when running the containers.

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