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40
Dockerfile
40
Dockerfile
@ -1,48 +1,24 @@
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# Args
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ARG MINECRAFT_VERSION="1.16.5"
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ARG FORGE_VERSION="36.2.26"
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ARG JRE_VERSION="openjdk8-jre"
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ARG UID=1520
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ARG USER=minecraft
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ARG GID=1520
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ARG GROUP=minecraft
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# The first stage just builds up the modpack
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FROM alpine:latest AS build
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# Use all of our arguments
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ARG MINECRAFT_VERSION
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ARG FORGE_VERSION
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ARG JRE_VERSION
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# Args
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ARG MINECRAFT_VERSION="1.16.5"
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ARG FORGE_VERSION="36.2.22"
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# Build us up the basics of the Minecraft server environment
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# The actual setup work
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COPY start-server.sh /minecraft/start-server.sh
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WORKDIR /minecraft
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RUN apk add curl "${JRE_VERSION}" &&\
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RUN apk add curl openjdk11-jre &&\
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curl -L "https://files.minecraftforge.net/maven/net/minecraftforge/forge/${MINECRAFT_VERSION}-${FORGE_VERSION}/forge-${MINECRAFT_VERSION}-${FORGE_VERSION}-installer.jar" -o installer.jar &&\
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java -jar installer.jar --installServer &&\
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echo "eula=true" > eula.txt &&\
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rm installer.jar installer.jar.log && \
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ln -s "forge-${MINECRAFT_VERSION}-${FORGE_VERSION}.jar" server.jar
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# Stuff them in a smaller container with fewer layers
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FROM alpine:latest AS final
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# Use only a subset of arguments
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ARG JRE_VERSION
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ARG UID
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ARG USER
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ARG GID
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ARG GROUP
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# Build the thing up
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RUN apk add bash curl findutils rsync screen "${JRE_VERSION}"
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# The second stage is the actual container
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FROM openjdk:11
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RUN apt-get update && apt-get install rsync screen -y
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WORKDIR /minecraft
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COPY --from=build /minecraft .
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RUN addgroup -g "${GID}" "${GROUP}" && \
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adduser -h /minecraft -s /bin/sh -D -H -u "${UID}" -G "${GROUP}" "${USER}" && \
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chown "${USER}:${GROUP}" /minecraft
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USER $USER
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CMD [ "bash", "start-server.sh" ]
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EXPOSE 25565
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7
LICENSE
7
LICENSE
@ -1,7 +0,0 @@
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Copyright 2021 Salt
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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16
README.md
16
README.md
@ -7,22 +7,12 @@ A Dockerfile and some assorted scripts to build a Minecraft Forge server contain
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Deploy as expected:
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```bash
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docker run -p 25565:25565 rehashedsalt/minecraft-forge:1.16.5-36.2.35-openjdk11-jre-master
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docker run -p 25565:25565 rehashedsalt/minecraft-forge:1.16.5-36.1.4-1.0.0
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```
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And badda bing, badda boom, you'll have a Minecraft Forge server of whatever the tag is.
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The tag looks long and unweildy, but it's just this:
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```
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rehashedsalt/minecraft-forge:${MINECRAFT_VERSION}-${FORGE_VERSION}-${OPENJDK_VERSION}-${BRANCH_OR_TAG_NAME}
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```
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You can see what the supported combinations of tags are by looking them up in `build.sh`. Each version only supports one edition of Java and one edition of Forge. Getting CI/CD to automagically determine the latest version of Forge is on the to-do list.
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Admittedly, I don't use tags very often. You'd do well to target `master` as the refname if you want bleeding edge stuff.
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Full list of tags is available on [Dockerhub](https://hub.docker.com/r/rehashedsalt/minecraft-forge/tags).
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The "latest" tag of each version of Minecraft is somewhere along the lines of "1.16.5-36.1.14-master". See Dockerhub for more info.
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## Server Console
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@ -58,8 +48,6 @@ The following arguments may be useful to pass through `$ARGS` from time to time:
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* `-Dfml.queryResult=confirm` - Useful when confirming through world corruption
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* Consider [this advice from a Forge dev](https://old.reddit.com/r/feedthebeast/comments/5jhuk9/modded_mc_and_memory_usage_a_history_with_a/) (circa 5+ years ago but still pretty relevant)
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## Weird Defaults
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The default `server.properties` contains the following changes to better facilitate usage in a modded environment:
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33
build.sh
33
build.sh
@ -2,52 +2,29 @@
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#
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# Build the Docker image for a series of different Forge versions
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#
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set -e
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# MC version list
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readonly -a mcversions=(
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"1.12.2"
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declare -a mcversions=(
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"1.16.5"
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"1.18.2"
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)
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# Forge version dictionary (we only support one version per)
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readonly -A forgeversions=(
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["1.12.2"]="14.23.5.2855"
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["1.16.5"]="36.2.35"
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["1.18.2"]="40.1.20"
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)
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# JRE versions (in the form of Alpine packages)
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readonly -A jreversions=(
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["1.12.2"]="openjdk8-jre"
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["1.16.5"]="openjdk11-jre"
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["1.18.2"]="openjdk11-jre"
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declare -A forgeversions=(
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["1.16.5"]="36.2.22"
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)
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# Build images
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docker buildx create --use
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for mc in ${mcversions[@]}; do
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forge="${forgeversions[$mc]}"
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jre="${jreversions[$mc]}"
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CI_HUB_USERNAME="${CI_HUB_USERNAME:=rehashedsalt}"
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CI_PROJECT_NAME="${CI_PROJECT_NAME:=minecraft-forge}"
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tag="$CI_HUB_USERNAME/$CI_PROJECT_NAME:$mc-${CI_COMMIT_REF_NAME:=bleeding}"
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echo "Building image..."
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echo " Minecraft: $mc"
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echo " Forge: $forge"
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echo " JRE: $jre"
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echo " Ref: $CI_COMMIT_REF_NAME"
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echo "Dockerhub tag: $tag"
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echo "Building image for Minecraft $mc, Forge $forge, CI_COMMIT_REF_NAME of $CI_COMMIT_REF_NAME"
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# --no-cache is required for clean builds
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docker buildx build \
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--build-arg MINECRAFT_VERSION="$mc" \
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--build-arg FORGE_VERSION="$forge" \
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--build-arg JRE_VERSION="$jre" \
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--no-cache \
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--platform linux/amd64 \
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--progress plain \
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--tag "$tag" \
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--tag "$CI_HUB_USERNAME/$CI_PROJECT_NAME:$mc-$forge-${CI_COMMIT_REF_NAME:=bleeding}" \
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--push \
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.
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done
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@ -13,16 +13,10 @@ if [ -n "$FORGE_PACK_ZIP" ]; then
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tmpdir="$(mktemp -d)"
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pushd "$tmpdir" > /dev/null 2>&1
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curl -L "$FORGE_PACK_ZIP" -o pack.zip
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unzip -q pack.zip
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ls -alh
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unzip pack.zip
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directory="$(find . -type d -iname "mods" -execdir pwd \; | sort -n | head -n 1)"
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if [ -z "$directory" ]; then
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echo "Unable to find mods directory"
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else
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echo "Found modpack directory: $directory"
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fi
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echo "Syncing content to /minecraft"
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rsync --no-perms --no-owner --no-group --ignore-existing "$directory"/ /minecraft/
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rsync -av --ignore-existing "$directory"/ /minecraft/
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popd > /dev/null 2>&1
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fi
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