refactor: refactored docker file to be far more lightweight, and usin…

…g only one now

Dockerfile

@@ -0,0 +1,96 @@
+# Build the node software
+#FROM gradle:7.3.3-jdk11 as builder
+FROM amazoncorretto:11-alpine-jdk as builder
+RUN  apk update && apk upgrade \
+  && apk add --no-cache --update coreutils bind-tools git unzip wget curl nodejs npm \
+  && rm -rf /var/cache/apk/*
+
+WORKDIR /signum-node
+
+COPY . .
+
+RUN node -v
+RUN npm -v
+
+# Build Signum Node Jar
+RUN chmod +x /signum-node/gradlew \
+  && /signum-node/gradlew clean dist jdeps \
+    --no-daemon \
+    -Pjdeps.recursive=true \
+    -Pjdeps.ignore.missing.deps=true \
+    -Pjdeps.print.module.deps=true
+
+# Unpack the build to /signum
+RUN unzip -o build/distributions/signum-node.zip -d /signum
+
+# provide needed update scripts
+RUN chmod +x update-phoenix.sh
+RUN chmod +x update-classic.sh
+COPY update-phoenix.sh /signum/update-phoenix.sh
+COPY update-classic.sh /signum/update-classic.sh
+
+WORKDIR /signum
+
+# Clean up /signum
+RUN rm -rf /signum/signum-node.exe 2> /dev/null || true \
+  && rm -rf /signum/signum-node.zip 2> /dev/null || true
+
+## Create a custom JRE
+RUN $JAVA_HOME/bin/jlink \
+  --add-modules $(cat /signum-node/build/reports/jdeps/print-module-deps-main.txt) \
+  --strip-debug \
+  --no-man-pages \
+  --no-header-files \
+  --compress=2 \
+  --output /jre
+
+RUN mkdir -p /requirements \
+  && ldd /jre/bin/java | awk 'NF == 4 { system("cp --parents " $3 " /requirements") }'
+
+# Prepare final image
+FROM alpine:3.18
+LABEL name="Signum Node"
+LABEL description="This is the official Signum Node image"
+LABEL credits="gittrekt,damccull,ohager"
+ENV JAVA_HOME=/jre
+ENV PATH="${JAVA_HOME}/bin:${PATH}"
+
+# minimum required env needed for wallet update scripts on container restarts -> see start-node.sh
+RUN  apk update && apk upgrade \
+  && apk add --no-cache --update coreutils bind-tools git unzip wget curl bash \
+  && rm -rf /var/cache/apk/*
+
+COPY --from=builder /jre $JAVA_HOME
+COPY --from=builder /signum /signum
+COPY --from=builder /requirements/ /
+
+WORKDIR /signum
+
+VOLUME ["/conf", "/db"]
+RUN ln -s /conf /signum/conf
+RUN ln -s /db /signum/db
+
+# We use the bootstrap folder to copy the config files to the host machine in the start-node.sh script
+# use one of [h2,mariadb,postgres]
+ARG DATABASE=h2
+
+# Injectable ports defaulting to mainnet
+ARG PORT_P2P=8123
+ARG PORT_HTTP=8125
+ARG PORT_WS=8126
+
+RUN mkdir ./bootstrap
+COPY conf/logging-default.properties ./bootstrap/logging-default.properties
+COPY conf/node-default.properties ./bootstrap/node-default.properties
+COPY conf/node.properties.${DATABASE} ./bootstrap/node.properties
+
+COPY docker/scripts/start-node.sh ./start-node.sh
+RUN chmod +x start-node.sh
+
+# Clean up
+RUN rm signum-node.exe 2> /dev/null || true
+RUN rm signum-node.zip 2> /dev/null || true
+
+EXPOSE $PORT_WS $PORT_HTTP $PORT_P2P
+
+ENTRYPOINT [ "./start-node.sh" ]

build.gradle

@@ -14,6 +14,7 @@ plugins {
   id "de.undercouch.download" version "5.5.0"
   id 'jacoco'
   id "com.github.node-gradle.node" version "7.0.1"
+  id 'org.kordamp.gradle.jdeps' version '0.20.0'
 }
 
 java {

docker/DOCKER.md

@@ -209,31 +209,10 @@ Within the `conf` folder you'll see three file created:
 
 # Building Image Manually
 
-The _official_ Dockerfiles are all within the folder `./docker` and structured like this:
-
-```
-├── DOCKER.md
-├── mainnet
-│   ├── h2
-│   │   └── Dockerfile
-│   ├── mariadb
-│   │   └── Dockerfile
-│   └── postgres
-│       └── Dockerfile
-├── scripts
-│   └── start-node.sh
-└── testnet
-    ├── h2
-    │   └── Dockerfile
-    ├── mariadb
-    │   └── Dockerfile
-    └── postgres
-        └── Dockerfile
-```
 > requires to have cloned this repository using `git clone --depth 1 https://github.com/signum-network/signum-node.git`
 
-The structure should be self-explanatory. To build your own image, e.g. with some modified Dockerfile maybe, 
-just copy the desired build from the related folder to the projects root directory and then run
+The _official_ Dockerfile is in the root folder.
+To build your own image, e.g. with some modified Dockerfile maybe, 
 
 `docker build -t signumnode:custom-h2 .`
 

docker/scripts/start-node.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # This script will be executed inside the docker container
-# The paths are all relative to docker /signum folder
+# The paths are all relative to docker root folder '/signum'
 
 set -e
 
@@ -31,4 +31,4 @@ fi
 ./update-classic.sh
 
 echo "🚀Starting Signum Node"
-exec java -XX:MaxRAMPercentage=90.0 -jar signum-node.jar --headless
+exec java -XX:MaxRAMPercentage=90.0 -jar signum-node.jar --headless -c /conf/