Add docker-compose to spinup test environment This docker compose is meant to spin up a primary-replica with pull replication. Replication happens via Git over HTTP using bearer token for authentication. Issue: Bug 16530 Change-Id: I475f49566fc3855163e007abeb88f28a338c1ac2

diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore

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+*.jar

diff --git a/example-setup/Dockerfile b/example-setup/Dockerfile
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+++ b/example-setup/Dockerfile

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+FROM gerritcodereview/gerrit:3.5.4-almalinux8
+
+USER root
+
+RUN yum update -y &&\
+    yum install -y gettext
+
+ARG JAVA_OPTS='--add-opens java.base/java.net=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED'
+ARG GERRIT_BRANCH=stable-3.5
+ARG LAST_BUILD=lastSuccessfulBuild/artifact/bazel-bin/plugins
+
+RUN  java $JAVA_OPTS -jar /var/gerrit/bin/gerrit.war init --batch --install-all-plugins -d /var/gerrit && \
+    java $JAVA_OPTS -jar /var/gerrit/bin/gerrit.war reindex -d /var/gerrit
+
+RUN git config -f /var/gerrit/etc/secure.config --add auth.bearerToken "theSecretBearerToken"
+
+COPY --chown=gerrit:gerrit pull-replication.jar /var/gerrit/plugins/pull-replication.jar
+COPY --chown=gerrit:gerrit pull-replication.jar /var/gerrit/lib/pull-replication.jar
+COPY --chown=gerrit:gerrit entrypoint.sh /tmp/
+RUN chmod +x /tmp/entrypoint.sh
+COPY --chown=gerrit:gerrit configs/replication.config.template /var/gerrit/etc/
+COPY --chown=gerrit:gerrit configs/gerrit.config.template /var/gerrit/etc/
+
+ENTRYPOINT [ "/tmp/entrypoint.sh" ]
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diff --git a/example-setup/README.md b/example-setup/README.md
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+# What is this for?
+
+This docker compose set up a primary replica using pull-replication to replicate the data
+over git http across the 2 nodes.
+
+To spin up your environment:
+1) copy the pull-replication artefact to test in te example-setup directory:
+
+```bash
+cp $GERRIT_HOME/bazel-bin/plugins/pull-replication/pull-replication.jar .
+```
+
+2) spin up the docker compose
+
+```bash
+docker-compose up
+```
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diff --git a/example-setup/configs/gerrit.config.template b/example-setup/configs/gerrit.config.template
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+++ b/example-setup/configs/gerrit.config.template

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+[gerrit]
+    basePath = git
+    serverId = 69ec38f0-350e-4d9c-96d4-bc956f2faaac
+    canonicalWebUrl = http://localhost:8080
+    instanceId = $INSTANCE_ID
+[container]
+    javaOptions = "-Dflogger.backend_factory=com.google.common.flogger.backend.log4j.Log4jBackendFactory#getInstance"
+    javaOptions = "-Dflogger.logging_context=com.google.gerrit.server.logging.LoggingContext#getInstance"
+    replica = $REPLICA
+[index]
+    type = LUCENE
+[auth]
+    type = DEVELOPMENT_BECOME_ANY_ACCOUNT
+[receive]
+    enableSignedPush = false
+[sendemail]
+    smtpServer = localhost
+[sshd]
+    listenAddress = *:29418
+    advertisedAddress = *:29418
+[httpd]
+    listenUrl = http://*:8080/
+    requestLog = true
+[cache]
+    directory = cache
+[plugins]
+    allowRemoteAdmin = true

diff --git a/example-setup/configs/replication.config.template b/example-setup/configs/replication.config.template
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+++ b/example-setup/configs/replication.config.template

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+[gerrit]
+    autoReload = true
+    replicateOnStartup = false
+[replication]
+    excludeRefs = ^refs/users/\\d\\d/\\d+/edit-\\d+/\\d+$
+    lockErrorMaxRetries = 5
+    maxRetries = 100
+    useCGitClient = false
+    consumeStreamEvents = false
+    syncRefs="ALL REFS ASYNC"
+    maxApiPayloadSize=40000
+[remote "$REMOTE"]
+    url = http://$REMOTE_URL:8080/a/#{name}#.git
+    apiUrl = http://$REMOTE_URL:8080
+    fetch = +refs/*:refs/*
+    mirror = true
+    timeout = 60 # In seconds
+    connectionTimeout = 120000 # In mseconds
+    rescheduleDelay = 15
+    replicationDelay = 1
+    threads = 4
+    createMissingRepositories = true
+    replicateProjectDeletions = true
+    replicateHiddenProjects = true
+    tagopt= --no-tags
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diff --git a/example-setup/docker-compose.yaml b/example-setup/docker-compose.yaml
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+++ b/example-setup/docker-compose.yaml

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+version: '3'
+services:
+  gerrit1:
+    build: .
+    environment:
+      - INSTANCE_ID=primary
+      - REPLICA=false
+      - REMOTE=replica-1
+      - REMOTE_URL=gerrit2
+    ports:
+      - "8080:8080"
+      - "29418:29418"
+  gerrit2:
+    build: .
+    environment:
+      - INSTANCE_ID=replica-1
+      - REPLICA=true
+      - REMOTE=primary
+      - REMOTE_URL=gerrit1
+    ports:
+      - "8081:8080"
+      - "29419:29418"
+    depends_on:
+      - gerrit1
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diff --git a/example-setup/entrypoint.sh b/example-setup/entrypoint.sh
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+++ b/example-setup/entrypoint.sh

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+#!/bin/bash -x
+
+function setup_replication_config {
+
+  echo "Replacing variables for file /var/gerrit/etc/replication.config.template"
+  cat /var/gerrit/etc/replication.config.template | envsubst | sed 's/#{name}#/${name}/g' > /var/gerrit/etc/replication.config
+
+  cat /var/gerrit/etc/replication.config
+}
+
+function setup_gerrit_config {
+  echo "Replacing variables for file /var/gerrit/etc/gerrit.config.template"
+  cat /var/gerrit/etc/gerrit.config.template | envsubst > /var/gerrit/etc/gerrit.config
+}
+
+setup_replication_config
+setup_gerrit_config
+
+echo "Running Gerrit ..."
+exec /var/gerrit/bin/gerrit.sh run
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