docker-geoserver

Run geoserver within docker.

Based on the official tomcat docker image, specifically:

Tomcat 9
JDK 11 (eclipse temurin)
Ubuntu Jammy (22.04 LTS)

Features

Ability to use a datadir from host machine for persistence.
Set ADMIN_PASSWORD with env variable.
Flexibility to mount other paths for persistence.
Build geoserver webapp (WAR) file from local/remote URL.
Run with custom geoserver WAR file during runtime.
Helper script to reload geoserver during runtime.
Helper script to test plugins during runtime.
CORS support.
Specify custom fonts during build time.

Important note

Most of the paths if mounted from the host to locations on the container such as $GEOSERVER_LOG_DIR $CATALINA_BASE $GEOWEBCACHE_CACHE_DIR $GEOWEBCACHE_CONFIG_DIR $NETCDF_DATA_DIR $GRIB_CACHE_DIR $GEOSERVER_DATA_DIR should be owned by the UID of user that geoserver is running on, which at the moment is UID 1000. The paths should be recursively chown-ed with this UID. More info here

How to run it

docker run --name gs -p 8080:8080 geosolutionsit/geoserver

Or for data persistence starting with default geoserver datadir (in this example GEOSERVER_DATA_DIR is pointing to /var/geoserver/datadir):

docker run --rm --name gs -p 8080:8080 geosolutionsit/geoserver

Save datadir locally to have a starting datadir:

docker cp gs:/var/geoserver/datadir ./datadir
docker stop gs

start GeoServer with data persistence on saved datadir:

docker run -v ./datadir:/var/geoserver/datadir --name gs -p 8080:8080 geosolutionsit/geoserver

Starting geoserver with data persistence

start GeoServer with data persistence on saved datadir and change admin password:

docker run -e ADMIN_PASSWORD=securepassword -v datadir:/var/geoserver/datadir --name gs -p 8080:8080 geosolutionsit/geoserver

Open your browser and point it to http://localhost:8080/geoserver . GeoServer web interface will show up, you can now log in with user admin and password geoserver.

Environment variables

There are some environment variables you can use at runtime.

Env variables to a path:

GEOSERVER_LOG_DIR to customize log placement
GEOSERVER_DATA_DIR to put your GeoServer datadir elsewhere
GEOWEBCACHE_CONFIG_DIR to put your GeoServer cache configuration elsewhere
GEOWEBCACHE_CACHE_DIR to put your GeoServer cache elsewhere
NETCDF_DATA_DIR to put your GeoServer NETCDF data dir elsewhere
GRIB_CACHE_DIR to put your GeoServer GRIB cache dir elsewhere

Each of these variables can be associated to an external volume to persist data for example in a docker compose.

Other env variables:

CATALINA_OPTS to customize CATALINA_OPTS for the container
EXTRA_GEOSERVER_OPTS to append to CATALINA_OPTS
JAIEXT_ENABLED by default is true. More info here.
APP_LOCATION to rename the GeoServer webapp directory to something else than geoserver

Java heap size tuning env variables:

INITIAL_MEMORY by default is 2G. (-Xms)
MAXIMUM_MEMORY by default is 4G (-Xmx)

CORS variables

CORS headers can be configured with env variables (they are also build arguments):

CORS_ENABLED to true to enable CORS support. The following environment variables can be used to customize the CORS configuration.
CORS_ALLOWED_ORIGINS (default *)
CORS_ALLOWED_METHODS (default GET,POST,PUT,DELETE,HEAD,OPTIONS)
CORS_ALLOWED_HEADERS (default *)
CORS_ALLOW_CREDENTIALS (default false) Setting this to true will only have the desired effect if
CORS_ALLOWED_ORIGINS defines explicit origins (not *)

Building with WAR files and plugins

Example of how to build a docker image with just geoserver war and then add plugins at runtime.

docker build -t geoserver:test-2.19.1 \
--build-arg GIT_HASH=`git show -s --format=%H` \
--build-arg GEOSERVER_WEBAPP_SRC=https://sourceforge.net/projects/geoserver/files/GeoServer/2.19.1/geoserver-2.19.1-war.zip/download  .

docker run \
--env PLUGIN_DYNAMIC_URLS="http://sourceforge.net/projects/geoserver/files/GeoServer/2.19.1/extensions/geoserver-2.19.1-control-flow-plugin.zip \
http://sourceforge.net/projects/geoserver/files/GeoServer/2.19.1/extensions/geoserver-2.19.1-libjpeg-turbo-plugin.zip" \
--rm --name gs -p 8080:8080 geoserver:test-2.19.1

Using GeoServer with docker compose

Docker Compose is a tool that helps us easily handle multiple containers at once.

Install instructions: Docker Docs (Not required if you have Docker Desktop, where it's pre-installed)

In order to use compose we need first to set correctly the "docker-compose.yml" file of the docker-geoserver.

Externalize the data directory of the GeoServer container

In order to persist and externalize access to the data of the geoserver container we need to set the values of the environment variables (named in the previous section) on the container and then associated this to the external volumes we going to create.

To achieve this, first we gonna create a .env file (in the same folder of the docker-compose.yml file) to define in an optimal way (easy to modify later) the environment variables values for the geoserver container:

.env file content:

GEOSERVER_LOG_DIR=/var/geoserver/logs
GEOSERVER_DATA_DIR=/var/geoserver/datadir
GEOWEBCACHE_CONFIG_DIR=/var/geoserver/datadir/gwc
GEOWEBCACHE_CACHE_DIR=/var/geoserver/gwc_cache_dir
NETCDF_DATA_DIR=/var/geoserver/netcdf_data_dir
GRIB_CACHE_DIR=/var/geoserver/grib_cache_dir

More details on the definition of the .env file: Docker - The Compose Specification

Then we are going to modify the docker-compose configuration file to set environment variables in the geoserver container with the “environment” key:

...
geoserver:
    build:
      context: .
      dockerfile: ./Dockerfile
    ...
    environment:
      - GEOSERVER_LOG_DIR=${GEOSERVER_LOG_DIR}
      - GEOSERVER_DATA_DIR=${GEOSERVER_DATA_DIR}
      - GEOWEBCACHE_CONFIG_DIR=${GEOWEBCACHE_CONFIG_DIR}
      - GEOWEBCACHE_CACHE_DIR=${GEOWEBCACHE_CACHE_DIR}
      - NETCDF_DATA_DIR=${NETCDF_DATA_DIR}
      - GRIB_CACHE_DIR=${GRIB_CACHE_DIR}
...

To be sure that the environment variables are not pass empty, you can set a default value.

Example:

...
geoserver:
...
    environment:
      - GEOSERVER_LOG_DIR=${GEOSERVER_LOG_DIR:-/var/geoserver/logs}
...

If GEOSERVER_LOG_DIR variable is not set in the .env file, is going to take his default value.

Next we are going to define the external volumes, modifying again the docker-compose configuration file.

services:
...
  geoserver:
    ...
    volumes:
      - logs:${GEOSERVER_LOG_DIR}
      - datadir:${GEOSERVER_DATA_DIR}
      - gwc_config:${GEOWEBCACHE_CONFIG_DIR}
      - gwc:${GEOWEBCACHE_CACHE_DIR}
      - netcfd:${NETCDF_DATA_DIR}
      - grib_cache:${GRIB_CACHE_DIR}
  ...
volumes:
  pg_data:
  logs:
  datadir:
  gwc_config:
  gwc:
  netcfd:
  grib_cache:

Both configurations together (environment variables and external volumes) are going to show like this in the docker-compose configuration file:

services:
...
  geoserver:
    build:
      context: .
      dockerfile: ./Dockerfile
    ...
    environment:
      - GEOSERVER_LOG_DIR=${GEOSERVER_LOG_DIR}
      - GEOSERVER_DATA_DIR=${GEOSERVER_DATA_DIR}
      - GEOWEBCACHE_CONFIG_DIR=${GEOWEBCACHE_CONFIG_DIR}
      - GEOWEBCACHE_CACHE_DIR=${GEOWEBCACHE_CACHE_DIR}
      - NETCDF_DATA_DIR=${NETCDF_DATA_DIR}
      - GRIB_CACHE_DIR=${GRIB_CACHE_DIR}
    volumes:
      - logs:${GEOSERVER_LOG_DIR}
      - datadir:${GEOSERVER_DATA_DIR}
      - gwc_config:${GEOWEBCACHE_CONFIG_DIR}
      - gwc:${GEOWEBCACHE_CACHE_DIR}
      - netcfd:${NETCDF_DATA_DIR}
      - grib_cache:${GRIB_CACHE_DIR}
  ...
volumes:
  pg_data:
  logs:
  datadir:
  gwc_config:
  gwc:
  netcfd:
  grib_cache:

After this our geoserver container is ready and persisting his data.

For more details about volumes, check the documentation: Docker - Volume

Using an alternative war file to build GeoServer container of the stack

In the docker-compose.yml file, actually we are building the GeoServer container from a image on a URL.

...
geoserver:
    build:
      context: .
      dockerfile: ./Dockerfile
      args:
        GEOSERVER_WEBAPP_SRC: "https://build.geoserver.org/geoserver/main/geoserver-main-latest-war.zip"
    container_name: geoserver 
...

This is dynamic, you can use a local file in the host to build the container as and alternative if you need. In order to do this, we need to modify the docker-compose configuration file like this:

...
geoserver:
    build:
      context: .
      dockerfile: ./Dockerfile
      args:
        GEOSERVER_WEBAPP_SRC: "/host/directory/alternativegeoserver.war"
    container_name: geoserver 
...

This option allows you to use URLs and local files as well to build the GeoServer container in the option that suit you best.

For more details, check the ADD documentation: Docker - ADD

Using custom .war file at runtime in Docker Compose

Example configuration for the geoserver service:

...
geoserver:
  image: geosolutionsit/geoserver:2.23.0 ## Initially, include an image to avoid Docker complaints.
  volumes:
    - /path/custom-war:/usr/local/tomcat/webapps/geoserver ## Define a volume pointing to your custom .war, ensuring it's unzipped.
  environment:
    - EXTRA_GEOSERVER_OPTS="-DGEOSERVER_CSRF_WHITELIST=example.org -DENABLE_JSONP=true"
  container_name: geoserver
  depends_on:
    postgres:
      condition: service_healthy
  ports:
    - 8080
  networks:
    - geoserver-network

...

Adjusting Permissions for the bind mounts

-Identify User ID: Determine the user ID running Geoserver inside the container. Use docker exec to access the container and run the id command.

-Adjust Permissions: On the host system, use chown to set the owner of the directory containing Geoserver files to match the user ID. Then, use chmod to set appropriate permissions.

-Assuming user ID is 1000 and directory is /path/custom-war

sudo chown -R 1000:1000 /path/custom-war
sudo chmod -R 755 /path/custom-war

Custom fonts

Set the CUSTOM_FONTS build argument to a path on the host with the fonts. This will be copied to the image during docker build.

Accessing GeoServer postgresql server from outside the container

Containers communicate between themselves in networks created, implicitly or through configuration, by docker compose. To reach a container from the host, the ports must be exposed declaratively through the "ports" keyword, which also allows us to choose if we want exposing the port differently in the host.

ports:
- "bind_address:hostport:containerport" # bind_address:hostport:containerport SHOULD always be specified as a (quoted) string, to avoid conflicts with yaml base-60 float.

The Host port and the Container Port can be equal or no, this option allows us to run different containers exposing the same ports without collisions. It is advised to specify the bind_address on the host explicitly to avoid security issues.

GeoServer docker-compose.yml:

services:
  postgres:
    image: postgis/postgis
    container_name: postgres
    ...
    ports:
      - 5432
    ...

  geoserver:
    ...
    container_name: geoserver
    ...
    ports:
      - 8080
    ...

  proxy:
    image: nginx
    container_name: proxy
    ...
    ports:
    - "80:80"
    ...

In this example the only port visible in the host will be port 80 of the proxy container.

In order to access the postgresql server from outside the container, we need to use the "port" option to expose a port.

services:
  postgres:
    image: postgis/postgis
    container_name: postgres
    ...
    ports:
      - "5432:5432"
    ...

To test the expose, we can use "curl" command in the host:

curl -v localhost:5432

*   Trying 127.0.0.1:5432...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 5432 (#0)
> GET / HTTP/1.1
> Host: localhost:5432
> User-Agent: curl/7.68.0
> Accept: */*

More details on expose containers ports: Docker - The Compose Specification

Starting the containers

When we have everything configured with the docker-compose.yml file, to start the containers for the first time we gonna use this command (located in the directory when the yml file is):

docker compose up

This is gonna create and start the containers, the networks, and the volumes defined in the docker-compose.yml file. This is the command you need to use every time after a change on the docker-compose.yml file in order to apply the modifications.

After the first time, we can simply use this command to start the containers:

docker compose start

Console output:

Starting postgres ... done
Starting geoserver ... done
Starting proxy ... done
...
(Continued with the proxy logs)

To stopping all the containers, this is the command:

docker compose stop

Console output:

Stopping proxy ... done
Stopping geoserver ... done
Stopping postgres  ... done

If you want to reset the status of the containers, we need to run this command, which will destroy everything with only the exception of external volumes:

docker compose down

How to build the Docker image with your own geoserver.war file

Make sure you have your war file at ./geoserver.war

docker build --build-arg GEOSERVER_WEBAPP_SRC="./geoserver.war" -t geoserver:test .

There are build arguments to customize the image:

PLUG_IN_URLS space-separated list of additional plugins for geoserver (see examples), this works both for extensions and community plugins.
GEOSERVER_DATA_DIR_SRC add a customized datadir to the final image. This can be a local zip or directory or remote URL (see ADD documentation)
GEOSERVER_WEBAPP_SRC to add your own custom web app to the final image. This can be a local zip or directory or remote URL (see ADD instruction Doc). If you want to build or package your own web app you can customize the "mother" stage of Dockerfile accordingly, if you want to download directly GeoServer you may need to add /download at the end of download url which you can copy/paste from GeoServer official downloads page, see last example below

Examples about using Docker image

# Example of how to build a single customized war of geoserver or simply any vanilla one
docker build -t geoserver:test . --build-arg GEOSERVER_WEBAPP_SRC="./resources/geoserver/geoserver.war"

# Same kind of build as above but burning custom datadir inside GeoServer Docker image

docker build -t geoserver:test . --build-arg GEOSERVER_WEBAPP_SRC="./resources/geoserver/geoserver.war" --build-arg GEOSERVER_DATA_DIR_SRC="./resources/geoserver-datadir/"

# Example on how to download and build a geoserver version with stable plugins controlflow and libjpegturbo plugins burned in the image
docker build -t geoserver:luca-test-2.19.1 --build-arg GEOSERVER_WEBAPP_SRC="https://sourceforge.net/projects/geoserver/files/GeoServer/2.19.1/geoserver-2.19.1-war.zip/download" --build-arg PLUG_IN_URLS="http://sourceforge.net/projects/geoserver/files/GeoServer/2.19.1/extensions/geoserver-2.19.1-control-flow-plugin.zip http://sourceforge.net/projects/geoserver/files/GeoServer/2.19.1/extensions/geoserver-2.19.1-libjpeg-turbo-plugin.zip" .

GeoServer rest reload

While the container is running you can reload geoserver with:

docker exec -it <your-container-name> bash /usr/local/bin/geoserver-rest-reload.sh

Test plugins on running container

docker exec -it <your-container-name> bash -c 'geoserver-plugin-download.sh $CATALINA_BASE/webapps/$APP_LOCATION/WEB-INF/lib <space separated list of plugin urls>'

Docker Hub build process and related helper scripts

Scripts provided that are for docker hub are under hooks directory.

Basically the hooks/build script takes these environment variables with current version numbers offered for geoserver:

export MAINT_VERSION="2.17.3 2.17.2 2.17.1"
export MIDDLE_STABLE="18"
export NIGHTLY_MAINT_VERSION="2.17.x"
export NIGHTLY_MASTER_VERSION="master foobar"
export NIGHTLY_STABLE_VERSION="2.18.x"
export STABLE_VERSION="2.18.1 2.18.0"

Notes:

Phantom version foobar is supposed to always fail as a test and always tried to be built. "MIDDLE_STABLE" has just a function for the scripts logic, increase it with latest minor version number for stable.

To test locally build hook you can use the test_hooks.sh script provided.

How to use `custom_build.sh` script

the script can be run with no parameters to show the needed parameters:

./custom_build.sh
Usage: ./custom_build.sh [docker image tag] [geoserver version] [geoserver master version] [datadir| nodatadir] [pull|no pull];

[docker image tag] :          the tag to be used for the docker iamge
[geoserver version] :         the release version of geoserver to be used; you can set it to master if you want the last release
[geoserver master version] :  if you use the master version for geoserver you need to set it to the numerical value for the next release;
                              if you use a released version you need to put it to the release number
[datadir| nodatadir]:         if this parameter is equal to nodatadir the datadir is not burned in the docker images
[pull|no pull]:               docker build use always a remote image or a local image

This script is meant to be used by automated build, variety of tests with highly customized versions of geoserver.

Example

./custom_build.sh my-docker-tag 2.18.x 2.18.x nodatadir no_pull

GIT HASH INFORMATION

This argument provides git hash information from inside of container. In order to get git hash information inside of container add this argument to the build line. As requirement git command should be installed.

--build-arg GIT_HASH=git show -s --format=%H

Below command shows git hash information.

docker exec -it bash -c 'echo $GIT_HASH'

Name		Name	Last commit message	Last commit date
Latest commit History 107 Commits
hooks		hooks
postgres		postgres
resources		resources
.dockerignore		.dockerignore
.gitignore		.gitignore
.placeholder		.placeholder
Dockerfile		Dockerfile
LICENSE.txt		LICENSE.txt
README.md		README.md
custom_build.sh		custom_build.sh
docker-compose.test.yml		docker-compose.test.yml
docker-compose.yml		docker-compose.yml
docker_hub_deployment.png		docker_hub_deployment.png
entrypoint.sh		entrypoint.sh
geoserver-plugin-download.sh		geoserver-plugin-download.sh
geoserver-rest-config.sh		geoserver-rest-config.sh
geoserver-rest-reload.sh		geoserver-rest-reload.sh
geoserver.conf		geoserver.conf
run_tests.sh		run_tests.sh
test_hooks.sh		test_hooks.sh

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docker-geoserver

Features

Important note

How to run it

Starting geoserver with data persistence

Environment variables

Env variables to a path:

Other env variables:

Java heap size tuning env variables:

CORS variables

Building with WAR files and plugins

Using GeoServer with docker compose

Externalize the data directory of the GeoServer container

Using an alternative war file to build GeoServer container of the stack

Using custom .war file at runtime in Docker Compose

Adjusting Permissions for the bind mounts

Custom fonts

Accessing GeoServer postgresql server from outside the container

Starting the containers

How to build the Docker image with your own geoserver.war file

Examples about using Docker image

GeoServer rest reload

Test plugins on running container

Docker Hub build process and related helper scripts

How to use `custom_build.sh` script

Example

GIT HASH INFORMATION

About

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geosolutions-it/docker-geoserver

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docker-geoserver

Features

Important note

How to run it

Starting geoserver with data persistence

Environment variables

Env variables to a path:

Other env variables:

Java heap size tuning env variables:

CORS variables

Building with WAR files and plugins

Using GeoServer with docker compose

Externalize the data directory of the GeoServer container

Using an alternative war file to build GeoServer container of the stack

Using custom .war file at runtime in Docker Compose

Adjusting Permissions for the bind mounts

Custom fonts

Accessing GeoServer postgresql server from outside the container

Starting the containers

How to build the Docker image with your own geoserver.war file

Examples about using Docker image

GeoServer rest reload

Test plugins on running container

Docker Hub build process and related helper scripts

How to use custom_build.sh script

Example

GIT HASH INFORMATION

About

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Contributors 21

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How to use `custom_build.sh` script

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