From 7aa27166006447fbc25f797eb62e98d8480dbded Mon Sep 17 00:00:00 2001
From: Alfredo Gutierrez <alfredo@swirldslabs.com>
Date: Fri, 19 Jul 2024 10:43:14 -0600
Subject: [PATCH] Adding files needed for the dockerization of the app

Signed-off-by: Alfredo Gutierrez <alfredo@swirldslabs.com>
---
 .gitignore                       |  2 ++
 server/build.gradle.kts          | 37 ++++++++++++++++++++++++++++++++
 server/docker/.dockerignore      |  9 ++++++++
 server/docker/Dockerfile         | 20 +++++++++++++++++
 server/docker/README.md          |  8 +++++++
 server/docker/docker-build.sh    | 16 ++++++++++++++
 server/docker/docker-compose.yml |  9 ++++++++
 server/docker/update-env.sh      | 16 ++++++++++++++
 8 files changed, 117 insertions(+)
 create mode 100644 server/docker/.dockerignore
 create mode 100644 server/docker/Dockerfile
 create mode 100644 server/docker/README.md
 create mode 100755 server/docker/docker-build.sh
 create mode 100644 server/docker/docker-compose.yml
 create mode 100755 server/docker/update-env.sh

diff --git a/.gitignore b/.gitignore
index cfc4ee37..f0f492d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,3 +47,5 @@ gradle-app.setting
 # JDT-specific (Eclipse Java Development Tools)
 .classpath
 
+# .env files
+server/docker/.env
diff --git a/server/build.gradle.kts b/server/build.gradle.kts
index a09bef8a..af349719 100644
--- a/server/build.gradle.kts
+++ b/server/build.gradle.kts
@@ -29,3 +29,40 @@ testModuleInfo {
     requires("org.mockito")
     requires("org.mockito.junit.jupiter")
 }
+
+var updateDockerEnv =
+    tasks.register<Exec>("updateDockerEnv") {
+        description =
+            "Creates the .env file in the docker folder that contains environment variables for docker"
+        group = "docker"
+
+        workingDir(layout.projectDirectory.dir("docker"))
+        commandLine("./update-env.sh", project.version)
+    }
+
+tasks.register<Exec>("createDockerImage") {
+    description = "Creates the docker image of the Block Node Server based on the current version"
+    group = "docker"
+
+    dependsOn(updateDockerEnv, tasks.assemble)
+    workingDir(layout.projectDirectory.dir("docker"))
+    commandLine("./docker-build.sh", project.version, layout.projectDirectory.dir("..").asFile)
+}
+
+tasks.register<Exec>("startDockerContainer") {
+    description = "Starts the docker container of the Block Node Server of the current version"
+    group = "docker"
+
+    dependsOn(updateDockerEnv)
+    workingDir(layout.projectDirectory.dir("docker"))
+    commandLine("sh", "-c", "docker-compose -p block-node up -d")
+}
+
+tasks.register<Exec>("stopDockerContainer") {
+    description = "Stops running docker containers of the Block Node Server"
+    group = "docker"
+
+    dependsOn(updateDockerEnv)
+    workingDir(layout.projectDirectory.dir("docker"))
+    commandLine("sh", "-c", "docker-compose -p block-node stop")
+}
diff --git a/server/docker/.dockerignore b/server/docker/.dockerignore
new file mode 100644
index 00000000..2234c260
--- /dev/null
+++ b/server/docker/.dockerignore
@@ -0,0 +1,9 @@
+*.iml
+*.md
+*.sw*
+*.csv
+
+mvnw*
+LICENSE*
+
+.java-version
diff --git a/server/docker/Dockerfile b/server/docker/Dockerfile
new file mode 100644
index 00000000..58b93cec
--- /dev/null
+++ b/server/docker/Dockerfile
@@ -0,0 +1,20 @@
+# Use Eclipse Temurin with Java 21 as the base image
+FROM eclipse-temurin:21
+
+# Define version
+ARG VERSION
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy Distribution TAR file
+COPY --from=distributions server-${VERSION}.tar .
+
+# Extract the TAR file
+RUN tar -xvf server-${VERSION}.tar
+
+# Expose the port that the application will run on
+EXPOSE 8080
+
+# RUN the bin script for starting the server
+ENTRYPOINT ["sh", "-c", "/app/server-${VERSION}/bin/server"]
diff --git a/server/docker/README.md b/server/docker/README.md
new file mode 100644
index 00000000..7ab3d39e
--- /dev/null
+++ b/server/docker/README.md
@@ -0,0 +1,8 @@
+This folder contains file that are used to start the services as docker containers.
+All docker workflows are defined with a corresponding gradle task. No script or file in this folder should be called 'by hand'.
+
+Gradle tasks are of group `docker`
+ - updateDockerEnv
+ - createDockerImage
+ - startDockerContainer
+ - stopDockerContainer
diff --git a/server/docker/docker-build.sh b/server/docker/docker-build.sh
new file mode 100755
index 00000000..e3284ad8
--- /dev/null
+++ b/server/docker/docker-build.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+if [[ $# -lt 1 ]]; then
+  echo "Usage: ${0} [version] [project_dir]"
+  exit 1
+fi
+
+VERSION=${1}
+
+echo "CREATING CONTAINER FOR VERSION ${VERSION}"
+echo "Using project directory: ${2}"
+echo
+
+# run docker build
+echo "Building container:"
+docker buildx build --load -t "block-node-server:${1}" --build-context distributions=../build/distributions --build-arg VERSION="${VERSION}" . || exit "${?}"
diff --git a/server/docker/docker-compose.yml b/server/docker/docker-compose.yml
new file mode 100644
index 00000000..2cda840b
--- /dev/null
+++ b/server/docker/docker-compose.yml
@@ -0,0 +1,9 @@
+version: '3.8'
+
+services:
+  block-node-server:
+    image: block-node-server:${VERSION}
+    env_file:
+      - .env
+    ports:
+      - "8080:8080"
diff --git a/server/docker/update-env.sh b/server/docker/update-env.sh
new file mode 100755
index 00000000..6f655f8d
--- /dev/null
+++ b/server/docker/update-env.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+# This scripts create a '.env' file that is used for docker & docker-compose as an input of environment variables.
+# This script is called by gradle and get the current project version as an input param
+
+if [ $# -lt 1 ]; then
+  echo "USAGE: $0 <VERSION>"
+  exit 1
+fi
+
+echo "VERSION=$1" > .env
+echo "REGISTRY_PREFIX=" >> .env
+# Storage root path, this is temporary until we have a proper .properties file for all configs
+echo "BLOCKNODE_STORAGE_ROOT_PATH=/app/storage" >> .env
+
+echo "VERSION/TAG UPDATED TO $1"