docs/test/integration/affinities.bats

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#!/usr/bin/env bats
load helpers
function teardown() {
swarm_manage_cleanup
stop_docker
}
@test "container affinty" {
start_docker_with_busybox 2
swarm_manage
run docker_swarm run --name c1 -e constraint:node==node-1 -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c2 -e affinity:container==c1 -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c3 -e affinity:container!=c1 -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c4 --label 'com.docker.swarm.affinities=["container==c1"]' -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c5 --label 'com.docker.swarm.affinities=["container\!=c1"]' -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm inspect c1
# FIXME: This will help debugging the failing test.
echo $output
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c2
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c3
[ "$status" -eq 0 ]
[[ "${output}" != *'"Name": "node-1"'* ]]
run docker_swarm inspect c4
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c5
[ "$status" -eq 0 ]
[[ "${output}" != *'"Name": "node-1"'* ]]
}
@test "image affinity" {
start_docker_with_busybox 2
swarm_manage
# Create a new image just on the second host.
run docker -H ${HOSTS[1]} tag busybox test
[ "$status" -eq 0 ]
# pull busybox to force the refresh images
# FIXME: this is slow.
run docker_swarm pull busybox
[ "$status" -eq 0 ]
run docker_swarm run --name c1 -e affinity:image==test -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c2 -e affinity:image!=test -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c3 --label 'com.docker.swarm.affinities=["image==test"]' -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c4 --label 'com.docker.swarm.affinities=["image\!=test"]' -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm inspect c1
# FIXME: This will help debugging the failing test.
echo $output
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c2
[ "$status" -eq 0 ]
[[ "${output}" != *'"Name": "node-1"'* ]]
run docker_swarm inspect c3
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c4
[ "$status" -eq 0 ]
[[ "${output}" != *'"Name": "node-1"'* ]]
}
@test "label affinity" {
start_docker_with_busybox 2
swarm_manage
run docker_swarm run --name c1 --label test.label=true -e constraint:node==node-1 -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c2 -e affinity:test.label==true -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c3 -e affinity:test.label!=true -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c4 --label 'com.docker.swarm.affinities=["test.label==true"]' -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm run --name c5 --label 'com.docker.swarm.affinities=["test.label\!=true"]' -d busybox:latest sh
[ "$status" -eq 0 ]
run docker_swarm inspect c1
# FIXME: This will help debugging the failing test.
echo $output
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c2
# FIXME: This will help debugging the failing test.
echo $output
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c3
[ "$status" -eq 0 ]
[[ "${output}" != *'"Name": "node-1"'* ]]
run docker_swarm inspect c4
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
run docker_swarm inspect c5
[ "$status" -eq 0 ]
[[ "${output}" != *'"Name": "node-1"'* ]]
}
@test "label affinity in parallel" {
start_docker_with_busybox 2
swarm_manage
# Run 3 tests in parallel. One of them must fail.
run parallel docker -H "${SWARM_HOSTS[0]}" run --label test.label=true -e affinity:test.label!=true -d busybox:latest ::: sh sh sh
[ "$status" -ne 0 ]
[[ "${output}" == *'unable to find a node that satisfies test.label!=true'* ]]
# Only 2 containers should have succeeded.
run docker_swarm ps -q
[ "$status" -eq 0 ]
[ "${#lines[@]}" -eq 2 ]
}
@test "soft affinity" {
start_docker_with_busybox 2
# Create a new image just on the second host.
docker -H ${HOSTS[1]} tag busybox test
swarm_manage
docker_swarm run --name c1 -e affinity:image==~not_exist -e affinity:image==test -d busybox:latest sh
run docker_swarm inspect c1
[ "$status" -eq 0 ]
[[ "${output}" == *'"Name": "node-1"'* ]]
}