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linuxserver/calibre

Calibre is a powerful and easy to use e-book manager. Users say it’s outstanding and a must-have. It’ll allow you to do nearly everything and it takes things a step beyond normal e-book software. It’s also completely free and open source and great for both casual users and computer experts.

Supported Architectures

Our images support multiple architectures such as x86-64, arm64 and armhf. We utilise the docker manifest for multi-platform awareness. More information is available from docker here and our announcement here.

Simply pulling ghcr.io/linuxserver/calibre should retrieve the correct image for your arch, but you can also pull specific arch images via tags.

The architectures supported by this image are:

Architecture	Tag
x86-64	latest

Usage

Here are some example snippets to help you get started creating a container from this image.

docker-compose (recommended)

Compatible with docker-compose v2 schemas.

---
version: "2.1"
services:
  calibre:
    image: ghcr.io/linuxserver/calibre
    container_name: calibre
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Europe/London
      - GUAC_USER=abc #optional
      - GUAC_PASS=900150983cd24fb0d6963f7d28e17f72 #optional
      - UMASK_SET=022 #optional
      - CLI_ARGS= #optional
    volumes:
      - /path/to/data:/config
    ports:
      - 8080:8080
      - 8081:8081
    restart: unless-stopped

docker cli

docker run -d \
  --name=calibre \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=Europe/London \
  -e GUAC_USER=abc `#optional` \
  -e GUAC_PASS=900150983cd24fb0d6963f7d28e17f72 `#optional` \
  -e UMASK_SET=022 `#optional` \
  -e CLI_ARGS= `#optional` \
  -p 8080:8080 \
  -p 8081:8081 \
  -v /path/to/data:/config \
  --restart unless-stopped \
  ghcr.io/linuxserver/calibre

Parameters

Docker images are configured using parameters passed at runtime (such as those above). These parameters are separated by a colon and indicate <external>:<internal> respectively. For example, -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 outside the container.

Ports (`-p`)

Parameter	Function
`8080`	Calibre desktop gui.
`8081`	Calibre webserver gui.

Environment Variables (`-e`)

Env	Function
`PUID=1000`	for UserID - see below for explanation
`PGID=1000`	for GroupID - see below for explanation
`TZ=Europe/London`	Specify a timezone to use EG Europe/London.
`GUAC_USER=abc`	Username for the calibre desktop gui.
`GUAC_PASS=900150983cd24fb0d6963f7d28e17f72`	Password's md5 hash for the calibre desktop gui.
`UMASK_SET=022`	for umask setting of Calibre, default if left unset is 022.
`CLI_ARGS=`	Optionally pass cli start arguments to calibre.

Volume Mappings (`-v`)

Volume	Function
`/config`	Where calibre should store its database and library.

Environment variables from files (Docker secrets)

You can set any environment variable from a file by using a special prepend FILE__.

As an example:

-e FILE__PASSWORD=/run/secrets/mysecretpassword

Will set the environment variable PASSWORD based on the contents of the /run/secrets/mysecretpassword file.

Umask for running applications

For all of our images we provide the ability to override the default umask settings for services started within the containers using the optional -e UMASK=022 setting. Keep in mind umask is not chmod it subtracts from permissions based on it's value it does not add. Please read up here before asking for support.

User / Group Identifiers

When using volumes (-v flags), permissions issues can arise between the host OS and the container, we avoid this issue by allowing you to specify the user PUID and group PGID.

Ensure any volume directories on the host are owned by the same user you specify and any permissions issues will vanish like magic.

In this instance PUID=1000 and PGID=1000, to find yours use id user as below:

  $ id username
    uid=1000(dockeruser) gid=1000(dockergroup) groups=1000(dockergroup)

Application Setup

This image sets up the calibre desktop app and makes its interface available via Guacamole server in the browser. The interface is available at http://your-ip:8080.

By default, there is no username or password set. Custom usernames and passwords can be set via optional docker environment variables. Keep in mind that the GUACPASS variable accepts the md5 hash of the desired password (the sample above is the hash for abc). The md5 hash can be generated by either of the following commands:

echo -n password | openssl md5

printf '%s' password | md5sum

Port 8081 is reserved for Calibre's built-in webserver, which can be enabled within the desktop app settings, and the internal port must be set to 8081 although it will then be available at the host mapped port for external access.

You can access advanced features of the Guacamole remote desktop using ctrl+alt+shift enabling you to use remote copy/paste and different languages.

Docker Mods

We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) as well as universal mods that can be applied to any one of our images can be accessed via the dynamic badges above.

Support Info

Shell access whilst the container is running:
- docker exec -it calibre /bin/bash
To monitor the logs of the container in realtime:
- docker logs -f calibre
Container version number
- docker inspect -f '{{ index .Config.Labels "build_version" }}' calibre
Image version number
- docker inspect -f '{{ index .Config.Labels "build_version" }}' ghcr.io/linuxserver/calibre

Versions

25.09.20: - Switch to python3, add various new dependencies for calibre 5.0.
10.05.19: - Add new env var CLI_ARGS to pass start arguments to calibre.
18.03.19: - Let Calibre access environment variables, add optional umask setting.
23.10.19: - Remove reccomended deps and zenity for character compatibility.
18.10.19: - Add python-xdg.
08.10.19: - Add fonts-wqy-microhei ttf-wqy-zenhei fcitx-rime dependency to resolve issue with Chinese encoding.
04.10.19: - Add libxkbcommon-x11-0 dependency to resolve issue with Calibre 4.
08.08.19: - Add zenity for international character support in dialog boxes.
12.07.19: - Download binary from calibre website instead of github.
29.04.19: - Initial release.

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