mirror of https://github.com/docker/docs.git
84 lines
2.6 KiB
Bash
84 lines
2.6 KiB
Bash
#!/usr/bin/env bats
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load ../helpers
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function teardown() {
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swarm_manage_cleanup
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stop_docker
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}
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@test "scheduler avoids failing node" {
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# Docker issue #14203 in runC causing this test to fail.
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# Issue fixed in Docker 1.10
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run docker --version
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if [[ "${output}" == "Docker version 1.9"* ]]; then
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skip
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fi
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# Start 1 engine and register it in the file.
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start_docker 2
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# Start swarm and check it can reach the node
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# refresh interval is 20s. 20 retries before marking it as unhealthy
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swarm_manage --engine-refresh-min-interval "20s" --engine-refresh-max-interval "20s" --engine-failure-retry 20 "${HOSTS[0]},${HOSTS[1]}"
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eval "docker_swarm info | grep -q -i 'Nodes: 2'"
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# Use memory on node-0
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docker_swarm run -e constraint:node==node-0 -m 50m busybox sh
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# Stop the node-1
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docker_host stop ${DOCKER_CONTAINERS[1]}
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# Try to schedule a container. It'd first select node-1 and fail
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run docker_swarm run -m 10m busybox sh
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[ "$status" -ne 0 ]
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[[ "${lines[0]}" == *"Cannot connect to the docker engine endpoint"* ]]
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# Try to run it again. It'd select node-0 and succeed
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run docker_swarm run -m 10m busybox sh
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[ "$status" -eq 0 ]
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}
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@test "refresh loop detects failure" {
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# Start 1 engine and register it in the file.
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start_docker 2
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# Start swarm and check it can reach the node
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# refresh interval is 1s. 20 retries before marking it as unhealthy
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swarm_manage --engine-refresh-min-interval "1s" --engine-refresh-max-interval "1s" --engine-failure-retry 20 "${HOSTS[0]},${HOSTS[1]}"
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eval "docker_swarm info | grep -q -i 'Nodes: 2'"
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# Use memory on node-0
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docker_swarm run -e constraint:node==node-0 -m 50m busybox sh
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# Stop the node-1
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docker_host stop ${DOCKER_CONTAINERS[1]}
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# Sleep to let refresh loop detect node-1 failure
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sleep 3
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# Try to schedule a container. It'd select node-0 and succeed
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run docker_swarm run -m 10m busybox sh
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[ "$status" -eq 0 ]
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}
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@test "scheduler retry" {
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# Start 1 engine and register it in the file.
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start_docker 2
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# Start swarm and check it can reach the node
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# refresh interval is 20s. 20 retries before marking it as unhealthy
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swarm_manage --engine-refresh-min-interval "20s" --engine-refresh-max-interval "20s" --engine-failure-retry 20 -cluster-opt swarm.createretry=1 "${HOSTS[0]},${HOSTS[1]}"
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eval "docker_swarm info | grep -q -i 'Nodes: 2'"
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# Use memory on node-0
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docker_swarm run -e constraint:node==node-0 -m 50m busybox sh
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# Stop the node-1
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docker_host stop ${DOCKER_CONTAINERS[1]}
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# Try to run a container. It'd try node-1, upon failure automatically retry on node-0
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run docker_swarm run -m 10m busybox sh
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[ "$status" -eq 0 ]
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}
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