E2E: Run e2e tests on PRs and easy local isolated e2e grafana server setup & conf (#22772)

* e2e: Trying to get end-2-end tests to run on PRs

* Probably need quotes here

* Change back to machine

* CI: only build amd64 docker

* lowercase docker image name

* Fixed docker image name

* added end-to-end-test

* Fixed paths

* Added setup_remote_docker

* Updated

* Minor tweak

* update

* Testing

* UpdateD#

* Making some progress

* Update

* Updated

* update

* Updated

* Updated

* testing

* Updated

* Updated

* Updated

* Updated

* updated

* Changed image

* Updated image

* updated

* Addd logging

* trying one more thing

* Fixed build-fast-frontend

* Updated

* Added devenv to end-to-end server setup

* removed file

* Updated

* Minor change

* Fixes

* Updated workspace, and tried to make naming and paths compatible with master & release jobs

* fixed syntax issue

* Updated truth

* Fixed path

e2e/kill-server

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+. e2e/variables
+
+if [ -f "$PIDFILE" ]; then
+  echo -e "Found pidfile, killing running grafana-server"
+  kill -9 `cat $PIDFILE`
+  rm $PIDFILE
+fi
+
+rm -rf e2e/tmp

e2e/run-suite

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+. e2e/variables
+
+echo -e "Waiting for grafana-server to finish starting"
+
+timeout 200 bash -c 'until nc -z $0 $1; do sleep 1; done' localhost $PORT
+
+echo -e "Starting Cypress scenarios"
+
+env BASE_URL=http://localhost:$PORT yarn e2e-tests
+

e2e/start-server

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+. e2e/variables
+
+./e2e/kill-server
+
+mkdir $RUNDIR
+
+echo -e "Copying grafana backend files to temp dir..."
+
+if [ -f $PACKAGE_FILE ]; then
+  echo "Found package tar file, extracting..."
+  tar zxf $PACKAGE_FILE -C $RUNDIR
+  mv $RUNDIR/grafana-*/* $RUNDIR
+else
+  echo "Copying local dev files"
+
+  cp -r ./bin $RUNDIR
+  cp -r ./public $RUNDIR
+
+  mkdir $RUNDIR/conf
+  mkdir $PROV_DIR
+  mkdir $PROV_DIR/datasources
+  mkdir $PROV_DIR/dashboards
+
+  cp ./conf/defaults.ini $RUNDIR/conf/defaults.ini
+  cp ./conf/sample.ini $RUNDIR/conf/custom.ini
+fi
+
+echo -e "Copy provisioning setup from devenv"
+
+cp devenv/datasources.yaml $PROV_DIR/datasources
+cp devenv/dashboards.yaml $PROV_DIR/dashboards
+
+cp -r devenv $RUNDIR
+
+echo -e "Starting Grafana Server port $PORT"
+
+$RUNDIR/bin/grafana-server \
+  --homepath=$RUNDIR \
+  --pidfile=$RUNDIR/pid \
+  cfg:server.http_port=$PORT \
+  cfg:app_mode=development
+
+# 2>&1 > $RUNDIR/output.log &
+# cfg:log.level=debug \
+

e2e/variables

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+RUNDIR=e2e/tmp
+PIDFILE=$RUNDIR/pid
+PACKAGE_FILE=/tmp/workspace/oss/dist/grafana-*linux-amd64.tar.gz
+PROV_DIR=$RUNDIR/conf/provisioning
+PORT=3001