From a38767488e8a80655548b9ca26c7e5822321de59 Mon Sep 17 00:00:00 2001
From: Christoph Burgmer <christoph.burgmer@gmail.com>
Date: Tue, 26 Jun 2018 21:32:27 +0200
Subject: [PATCH] Experimental GoCD in a Docker container

---
 .gitignore                                    |  1 +
 .../agent/scripts/with_test_results.sh        | 49 ++++++++++
 examples/gocd_experimental/docker-compose.yml | 18 ++++
 examples/gocd_experimental/run.sh             | 96 +++++++++++++++++++
 .../server/cruise-config.xml                  | 25 +++++
 5 files changed, 189 insertions(+)
 create mode 100755 examples/gocd_experimental/agent/scripts/with_test_results.sh
 create mode 100644 examples/gocd_experimental/docker-compose.yml
 create mode 100755 examples/gocd_experimental/run.sh
 create mode 100644 examples/gocd_experimental/server/cruise-config.xml

diff --git a/.gitignore b/.gitignore
index 72f78917..9029ba9c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ ubuntu-xenial-16.04-cloudimg-console.log
 /examples/aws/deploy/terraform.tfstate*
 /data/
 /log/
+/examples/gocd_experimental/server/config/
diff --git a/examples/gocd_experimental/agent/scripts/with_test_results.sh b/examples/gocd_experimental/agent/scripts/with_test_results.sh
new file mode 100755
index 00000000..a92413f7
--- /dev/null
+++ b/examples/gocd_experimental/agent/scripts/with_test_results.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+set -eo pipefail
+
+is_successful() {
+    local outcome="$1"
+    test "$outcome" -ne 0
+}
+
+test_results() {
+    local outcome="$1"
+    local failure=""
+    local error=""
+
+    if ! is_successful "$outcome"; then
+        failure="<failure>Meh</failure>"
+        error="<error>Argh</error>"
+    fi
+
+    cat <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuites>
+  <testsuite name="Another Test Suite">
+    <testsuite name="Nested Test Suite">
+      <testcase classname="some.class" name="A Test" time="0.0021">
+        ${failure}
+      </testcase>
+      <testcase classname="some.class" name="Some Test" time="0.005">
+        ${error}
+      </testcase>
+      <testcase classname="some.class" name="Another Test" time="0.003">
+      </testcase>
+      <testcase classname="some.class" name="Skipped Test" time="0.004">
+          <skipped/>
+      </testcase>
+    </testsuite>
+  </testsuite>
+</testsuites>
+EOF
+}
+
+main() {
+    local outcome
+    outcome=$((GO_PIPELINE_COUNTER % 3))
+
+    test_results "$outcome" > results.xml
+    is_successful "$outcome"
+}
+
+main "$@"
diff --git a/examples/gocd_experimental/docker-compose.yml b/examples/gocd_experimental/docker-compose.yml
new file mode 100644
index 00000000..7cf34b5e
--- /dev/null
+++ b/examples/gocd_experimental/docker-compose.yml
@@ -0,0 +1,18 @@
+version: "2.4"
+
+services:
+  server:
+    image: gocd/gocd-server:v18.6.0
+    volumes:
+      - ./server/config:/godata/config
+    ports:
+      - "8153:8153"
+
+  agent:
+    image: gocd/gocd-agent-alpine-3.7:v18.6.0
+    restart: always
+    volumes:
+      - ./agent/scripts:/scripts
+    environment:
+      GO_SERVER_URL: "https://server:8154/go"
+      AGENT_AUTO_REGISTER_KEY: "ab455494-52a3-4ce7-b0cc-d38fbdc0aea9"
diff --git a/examples/gocd_experimental/run.sh b/examples/gocd_experimental/run.sh
new file mode 100755
index 00000000..aebb4c37
--- /dev/null
+++ b/examples/gocd_experimental/run.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+set -eo pipefail
+
+readonly SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+readonly TMP_LOG="/tmp/run.$$.log"
+readonly BASE_URL="http://localhost:8153/go"
+
+wait_for_server() {
+    local url=$1
+    echo -n " waiting for ${url}"
+    until curl --output /dev/null --silent --head --fail "$url"; do
+        printf '.'
+        sleep 5
+    done
+}
+
+announce() {
+    local text="$1"
+    echo -ne "\033[1;30m"
+    echo -n "$text"
+    echo -ne "\033[0m"
+}
+
+hint_at_logs() {
+    # shellcheck disable=SC2181
+    if [[ "$?" -ne 0 ]]; then
+        echo
+        echo "Logs are in ${TMP_LOG}"
+    fi
+}
+
+container_exists() {
+    if [[ -z $(docker-compose ps -q) ]]; then
+        return 1
+    else
+        return 0
+    fi
+}
+
+goal_start() {
+    if ! container_exists; then
+        announce "Provisioning docker image"
+        echo
+
+        # Wonky workaround for trying to boot up server image with minimal config, but no agent registration
+        mkdir -p server/config
+        cp server/*.xml server/config
+
+        docker-compose up --no-start
+
+        echo "done"
+    fi
+
+    announce "Starting docker image"
+    docker-compose up -d &> "$TMP_LOG"
+
+    wait_for_server "$BASE_URL"
+    echo " done"
+    rm "$TMP_LOG"
+}
+
+
+goal_stop() {
+    announce "Stopping docker image"
+    docker-compose stop &> "$TMP_LOG"
+    echo " done"
+    rm "$TMP_LOG"
+}
+
+goal_destroy() {
+    announce "Destroying docker container"
+    docker-compose down &> "$TMP_LOG"
+    echo " done"
+    rm "$TMP_LOG"
+}
+
+goal_purge() {
+    announce "Purging docker images"
+    docker rmi gocd/gocd-server:v18.6.0 >> "$TMP_LOG"
+    docker rmi gocd/gocd-agent-alpine-3.7:v18.6.0 >> "$TMP_LOG"
+    echo " done"
+    rm "$TMP_LOG"
+}
+
+main() {
+    trap hint_at_logs EXIT
+
+    if type -t "goal_$1" &>/dev/null; then
+        "goal_$1"
+    else
+        echo "usage: $0 (start|stop|destroy|purge)"
+    fi
+}
+
+main "$@"
diff --git a/examples/gocd_experimental/server/cruise-config.xml b/examples/gocd_experimental/server/cruise-config.xml
new file mode 100644
index 00000000..f3567193
--- /dev/null
+++ b/examples/gocd_experimental/server/cruise-config.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<cruise xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="cruise-config.xsd" schemaVersion="108">
+  <server artifactsdir="artifacts" agentAutoRegisterKey="ab455494-52a3-4ce7-b0cc-d38fbdc0aea9" webhookSecret="90198de9-68da-4547-a699-3c4309862f87" commandRepositoryLocation="default" serverId="ce73cbce-3b97-4a11-91a1-45ee51cc5ed1" tokenGenerationKey="72f2db41-0330-406f-9af9-0e6ed3e37680" />
+  <pipelines group="defaultGroup">
+    <pipeline name="Example">
+      <materials>
+        <git url="https://github.com/cburgmer/buildviz.git" shallowClone="true" autoUpdate="false" />
+      </materials>
+      <stage name="defaultStage" fetchMaterials="false">
+        <jobs>
+          <job name="defaultJob">
+            <tasks>
+              <exec command="/scripts/with_test_results.sh">
+                <runif status="passed" />
+              </exec>
+            </tasks>
+            <artifacts>
+              <artifact type="test" src="results.xml" dest="results.xml" />
+            </artifacts>
+          </job>
+        </jobs>
+      </stage>
+    </pipeline>
+  </pipelines>
+</cruise>