Git integration

The Git integration is only available at ayaka-notes/overleaf currently.

This feature is initially developed by ayaka-notes/overleaf-pro.

1

Enable the git-bridge (For Toolkit user Only)

If you’re using the Toolkit, enable the git-bridge by setting the following in your config/overleaf.rc:

config/overleaf.rc

GIT_BRIDGE_ENABLED=true

2

Add the git-bridge container (For Docker-compose user Only)

For users running a custom docker-compose.yml, add the following container configuration to your compose file:

docker-compose.yml (git-bridge service)

git-bridge:
    restart: always
    image: quay.io/sharelatex/git-bridge:4.0.0 # tag should match the `sharelatex` container tag
    volumes:
        - ~/git_bridge_data:/data/git-bridge
    container_name: git-bridge
    expose:
        - "8000"
    environment:
        GIT_BRIDGE_API_BASE_URL: "http://sharelatex:3000/api/v0/" 
        # "http://sharelatex/api/v0/" for version 4.1.6 and earlier
        GIT_BRIDGE_OAUTH2_SERVER: "http://sharelatex"
        GIT_BRIDGE_POSTBACK_BASE_URL: "http://git-bridge:8000"
        GIT_BRIDGE_ROOT_DIR: "/data/git-bridge"
    user: root
    command: ["/server-pro-start.sh"]

3

Update the sharelatex container configuration

You’ll also need to link the git-bridge container in the sharelatex container and define the following environment variables, please pay attention to V2_HISTORY_URL:

docker-compose.yml (sharelatex service)

sharelatex:
    links:
        - git-bridge
    environment:
         GIT_BRIDGE_ENABLED: true
         GIT_BRIDGE_HOST: "git-bridge"
         GIT_BRIDGE_PORT: "8000"
         # We use v1 now, if you used to set V1_HISTORY_URL, please update now
         V1_HISTORY_URL: "http://sharelatex:3054"

4

Authentication

When authenticating a git client, users need a Personal Access Token. Users can manage Personal Access Tokens through the application UI (see the documentation):

Git Intergration Personal Access Token

5

Monitoring and resource considerations

We recommend you monitor your host resources after enabling the git-bridge. The load increase will depend on:

• the number of users accessing the feature

• the types of projects hosted in your instance (larger projects are generally more resource intensive)

Swapping projects to S3

The Git integration stores a complete git repository on disk for each project that gets cloned by a user. If you have limited disk space, you can activate a swap job that will move repositories that are less used to AWS S3. If a swapped repository is needed again, it gets moved back to the disk. The following environment variables control the swap job:

Name	Description
GIT_BRIDGE_SWAPSTORE_TYPE	Set this to "s3" to activate the swap job.
GIT_BRIDGE_SWAPSTORE_AWS_ACCESS_KEY	Your AWS access key
GIT_BRIDGE_SWAPSTORE_AWS_SECRET	Your AWS secret
GIT_BRIDGE_SWAPSTORE_S3_BUCKET_NAME	This bucket will contain the zipped git repositories
GIT_BRIDGE_SWAPSTORE_AWS_REGION	The bucket’s region
GIT_BRIDGE_SWAPJOB_MIN_PROJECTS	How many projects to keep on disk, at a minimum. - Default: 50
GIT_BRIDGE_SWAPJOB_LOW_GIB	Low watermark for swapping. The swap job will move projects until disk usage is below this value. - Default: 128 GB
GIT_BRIDGE_SWAPJOB_HIGH_GIB	High watermark for swapping. The swap job will start swapping when disk usage reaches this value. - Default: 256 GB
GIT_BRIDGE_SWAPJOB_INTERVAL_MILLIS	The amount of time between checking disk usage and running the swap job. - Default: 3600000 ms = 1 hour

Q&A

If I share my project with someone else, how does the Git Bridge permission model work?

Users with read-only access can only clone this project; users with read-write access can clone and push projects. Note: Users need to be logged in to join this project.