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Merge pull request #1098 from aluzzardi/leadership-integration 

Leadership: integration tests
This commit is contained in:
Victor Vieux 2015-07-28 23:37:48 -07:00
parent 2a9503e449 cafca42239
commit 97f55ad610
2 changed files with 75 additions and 7 deletions
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22
test/integration/helpers.bash
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@ -17,8 +17,8 @@ DOCKER_IMAGE=${DOCKER_IMAGE:-dockerswarm/dind-master}
DOCKER_VERSION=${DOCKER_VERSION:-latest}
DOCKER_BINARY=${DOCKER_BINARY:-`command -v docker`}
# Host on which the manager will listen to (random port between 6000 and 7000).
SWARM_HOST=127.0.0.1:$(( ( RANDOM % 1000 ) + 6000 ))
# Port on which the manager will listen to (random port between 6000 and 7000).
SWARM_BASE_PORT=$(( ( RANDOM % 1000 ) + 6000 ))
# Use a random base port (for engines) between 5000 and 6000.
BASE_PORT=$(( ( RANDOM % 1000 ) + 5000 ))
@ -50,7 +50,7 @@ function docker_host() {
# Run the docker CLI against swarm.
function docker_swarm() {
docker -H $SWARM_HOST "$@"
docker -H ${SWARM_HOSTS[0]} "$@"
}
# Run the swarm binary. You must NOT fork this command (swarm foo &) as the PID
@ -94,9 +94,15 @@ function swarm_manage() {
discovery="$@"
fi
"$SWARM_BINARY" -l debug manage -H "$SWARM_HOST" --heartbeat=1s "$discovery" &
SWARM_PID=$!
wait_until_reachable "$SWARM_HOST"
local i=${#SWARM_MANAGE_PID[@]}
local port=$(($SWARM_BASE_PORT + $i))
local host=127.0.0.1:$port
echo "$SWARM_BINARY" -l debug manage -H "$host" --heartbeat=1s $discovery
"$SWARM_BINARY" -l debug manage -H "$host" --heartbeat=1s $discovery &
SWARM_MANAGE_PID[$i]=$!
SWARM_HOSTS[$i]=$host
wait_until_reachable "$host"
}
# swarm join every engine created with `start_docker`.
@ -124,7 +130,9 @@ function swarm_join() {
# Stops the manager.
function swarm_manage_cleanup() {
kill $SWARM_PID || true
for pid in ${SWARM_MANAGE_PID[@]}; do
kill $pid || true
done
}
# Clean up Swarm join processes

60
test/integration/replication.bats Normal file
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@ -0,0 +1,60 @@
#!/usr/bin/env bats
load helpers
# Address on which the store will listen (random port between 8000 and 9000).
STORE_HOST=127.0.0.1:$(( ( RANDOM % 1000 ) + 8000 ))
# Discovery parameter for Swarm
DISCOVERY="consul://${STORE_HOST}/test"
# Container name for integration test
CONTAINER_NAME=swarm_leader
function start_store() {
docker_host run -v $(pwd)/discovery/consul/config:/config --name=$CONTAINER_NAME -h $CONTAINER_NAME -p $STORE_HOST:8500 -d progrium/consul -server -bootstrap-expect 1 -config-file=/config/consul.json
# FIXME: We have to wait a few seconds for the store to come up.
sleep 3
}
function stop_store() {
docker_host rm -f -v $CONTAINER_NAME
}
function setup() {
start_store
}
function teardown() {
swarm_manage_cleanup
swarm_join_cleanup
stop_docker
stop_store
}
@test "leader election" {
local i=${#SWARM_MANAGE_PID[@]}
local port=$(($SWARM_BASE_PORT + $i))
local host=127.0.0.1:$port
# Bring up one manager, make sure it becomes primary.
swarm_manage --replication --advertise 127.0.0.1:$SWARM_BASE_PORT "$DISCOVERY"
run docker -H ${SWARM_HOSTS[0]} info
[[ "${output}" == *"Role: primary"* ]]
# Fire up a second manager. Ensure it's a replica forwarding to the right primary.
swarm_manage --replication --advertise 127.0.0.1:$(($SWARM_BASE_PORT + 1)) "$DISCOVERY"
run docker -H ${SWARM_HOSTS[1]} info
[[ "${output}" == *"Role: replica"* ]]
[[ "${output}" == *"Primary: ${SWARM_HOSTS[0]}"* ]]
# Kill the leader and ensure the replica takes over.
kill "${SWARM_MANAGE_PID[0]}"
retry 120 1 eval "docker -H ${SWARM_HOSTS[1]} info | grep -q 'Role: primary'"
# Add a new replica and make sure it sees the new leader as primary.
swarm_manage --replication --advertise 127.0.0.1:$(($SWARM_BASE_PORT + 2)) "$DISCOVERY"
run docker -H ${SWARM_HOSTS[2]} info
[[ "${output}" == *"Role: replica"* ]]
[[ "${output}" == *"Primary: ${SWARM_HOSTS[1]}"* ]]
}