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feat(eclair): add initial Dockerfile for eclair

master
jamaljsr 5 years ago
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4117f3ed57
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accec52541
3 changed files with 163 additions and 0 deletions
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  1. 21
      docker/README.md
  2. 102
      docker/eclair/Dockerfile
  3. 40
      docker/eclair/docker-entrypoint.sh

21
docker/README.md
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@ -74,6 +74,27 @@ Replace `<version>` with the desired c-lightning version (ex: `0.8.0`).
$ docker push polarlightning/clightning:<version>
```
## Eclair
### Tags
- `0.3.3` ([eclair/Dockerfile](https://github.com/jamaljsr/polar/blob/master/docker/eclair/Dockerfile))
**Building the image**
```sh
$ cd eclair
$ docker build --build-arg ECLAIR_VERSION=<version> -t polarlightning/eclair:<version> .
```
Replace `<version>` with the desired Eclair version (ex: `0.3.3`).
**Push to Docker Hub**
```sh
$ docker push polarlightning/eclair:<version>
```
# Out-of-Band Image Updates
These docker images can be updated in-between Polar releases. This allows developers to use the latest Bitcoin & Lightning versions shortly after they are released, without needing to download and install a new version of Polar.

102
docker/eclair/Dockerfile
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@ -0,0 +1,102 @@
#########################
# Original Source: https://github.com/ACINQ/eclair/blob/v0.3.3/Dockerfile
#########################
FROM adoptopenjdk/openjdk11:jdk-11.0.3_7-alpine as BUILD
# Setup maven, we don't use https://hub.docker.com/_/maven/ as it declare .m2 as volume, we loose all mvn cache
# We can alternatively do as proposed by https://github.com/carlossg/docker-maven#packaging-a-local-repository-with-the-image
# this was meant to make the image smaller, but we use multi-stage build so we don't care
RUN apk add --no-cache curl tar bash git
ARG MAVEN_VERSION=3.6.3
ARG USER_HOME_DIR="/root"
ARG SHA=c35a1803a6e70a126e80b2b3ae33eed961f83ed74d18fcd16909b2d44d7dada3203f1ffe726c17ef8dcca2dcaa9fca676987befeadc9b9f759967a8cb77181c0
ARG BASE_URL=https://apache.osuosl.org/maven/maven-3/${MAVEN_VERSION}/binaries
RUN mkdir -p /usr/share/maven /usr/share/maven/ref \
&& curl -fsSL -o /tmp/apache-maven.tar.gz ${BASE_URL}/apache-maven-${MAVEN_VERSION}-bin.tar.gz \
&& echo "${SHA} /tmp/apache-maven.tar.gz" | sha512sum -c - \
&& tar -xzf /tmp/apache-maven.tar.gz -C /usr/share/maven --strip-components=1 \
&& rm -f /tmp/apache-maven.tar.gz \
&& ln -s /usr/share/maven/bin/mvn /usr/bin/mvn
ENV MAVEN_HOME /usr/share/maven
ENV MAVEN_CONFIG "$USER_HOME_DIR/.m2"
# Let's fetch eclair dependencies, so that Docker can cache them
# This way we won't have to fetch dependencies again if only the source code changes
# The easiest way to reliably get dependencies is to build the project with no sources
#################### Polar Modification
# No need to copy local files
# Original lines:
# WORKDIR /usr/src
# COPY pom.xml pom.xml
# COPY eclair-core/pom.xml eclair-core/pom.xml
# COPY eclair-node/pom.xml eclair-node/pom.xml
# COPY eclair-node-gui/pom.xml eclair-node-gui/pom.xml
# RUN mkdir -p eclair-core/src/main/scala && touch eclair-core/src/main/scala/empty.scala
# # Blank build. We only care about eclair-node, and we use install because eclair-node depends on eclair-core
# RUN mvn install -pl eclair-node -am
# RUN mvn clean
#
# Only then do we copy the sources
# COPY . .
####################
#################### Polar Modification
# Pull source code from github instead of a local repo
WORKDIR /usr/repo
ARG ECLAIR_VERSION
RUN git clone --branch=v${ECLAIR_VERSION} https://github.com/ACINQ/eclair.git .
# Let's fetch eclair dependencies, so that Docker can cache them
WORKDIR /usr/src
RUN cp /usr/repo/pom.xml pom.xml
RUN mkdir -p eclair-core && cp /usr/repo/eclair-core/pom.xml eclair-core/pom.xml
RUN mkdir -p eclair-node && cp /usr/repo/eclair-node/pom.xml eclair-node/pom.xml
RUN mkdir -p eclair-node-gui && cp /usr/repo/eclair-node-gui/pom.xml eclair-node-gui/pom.xml
RUN mkdir -p eclair-core/src/main/scala && touch eclair-core/src/main/scala/empty.scala
# Blank build. We only care about eclair-node, and we use install because eclair-node depends on eclair-core
RUN mvn install -pl eclair-node -am
RUN mvn clean
# Only then do we copy the sources
RUN cp -R -f /usr/repo/* .
####################
# And this time we can build in offline mode, specifying 'notag' instead of git commit
RUN mvn package -pl eclair-node -am -DskipTests -Dgit.commit.id=notag -Dgit.commit.id.abbrev=notag -o
# It might be good idea to run the tests here, so that the docker build fail if the code is bugged
# We currently use a debian image for runtime because of some jni-related issue with sqlite
FROM openjdk:11.0.4-jre-slim
WORKDIR /app
# install jq for eclair-cli
RUN apt-get update && apt-get install -y bash jq curl gosu
# copy and install eclair-cli executable
COPY --from=BUILD /usr/src/eclair-core/eclair-cli .
RUN chmod +x eclair-cli && mv eclair-cli /sbin/eclair-cli
# Eclair only needs the eclair-node-*.jar to run
COPY --from=BUILD /usr/src/eclair-node/target/eclair-node-*.jar .
RUN ln `ls` eclair-node.jar
#################### Polar Modification
# Original lines:
# ENV ECLAIR_DATADIR=/data
# ENV JAVA_OPTS=
# RUN mkdir -p "$ECLAIR_DATADIR"
# VOLUME [ "/data" ]
# ENTRYPOINT java $JAVA_OPTS -Declair.datadir=$ECLAIR_DATADIR -jar eclair-node.jar
COPY docker-entrypoint.sh /entrypoint.sh
RUN chmod a+x /entrypoint.sh
VOLUME ["/home/eclair"]
EXPOSE 9735 8080
ENTRYPOINT ["/entrypoint.sh"]
CMD java $JAVA_OPTS -Declair.datadir=$ECLAIR_DATADIR -jar eclair-node.jar
####################

40
docker/eclair/docker-entrypoint.sh
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@ -0,0 +1,40 @@
#!/usr/bin/env bash
set -e
# give bitcoind a second to bootup
sleep 1
# containers on linux share file permissions with hosts.
# assigning the same uid/gid from the host user
# ensures that the files can be read/write from both sides
if ! id eclair > /dev/null 2>&1; then
USERID=${USERID:-1000}
GROUPID=${GROUPID:-1000}
echo "adding user eclair ($USERID:$GROUPID)"
groupadd -f -g $GROUPID eclair
useradd -r -u $USERID -g $GROUPID eclair
# ensure correct ownership of user home dir
mkdir -p /home/eclair
chown eclair:eclair /home/eclair
fi
if [ "$1" = "polar-eclair" ]; then
# convert command line args to JAVA_OPTS
JAVA_OPTS=""
for arg in "$@"
do
if [ "${arg:0:2}" = "--" ]; then
JAVA_OPTS="$JAVA_OPTS -Declair.${arg:2}"
fi
done
# trim leading/trailing whitespace
JAVA_OPTS="$(sed -e 's/[[:space:]]*$//' <<<${JAVA_OPTS})"
echo "Running as eclair user:"
echo "java $JAVA_OPTS -jar eclair-node.jar"
exec gosu eclair java $JAVA_OPTS -jar eclair-node.jar
fi
echo "$@"
exec "$@"
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