mirror of https://github.com/containers/podman.git
206 lines
7.4 KiB
Bash
206 lines
7.4 KiB
Bash
#!/usr/bin/env bats -*- bats -*-
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#
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# tests for podman healthcheck
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#
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#
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load helpers
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# Helper function: run 'podman inspect' and check various given fields
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function _check_health {
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local testname="$1"
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local tests="$2"
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run_podman inspect --format "{{json .State.Healthcheck}}" healthcheck_c
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parse_table "$tests" | while read field expect;do
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actual=$(jq ".$field" <<<"$output")
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is "$actual" "$expect" "$testname - .State.Healthcheck.$field"
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done
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}
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@test "podman healthcheck" {
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_build_health_check_image healthcheck_i
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# Run that healthcheck image.
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run_podman run -d --name healthcheck_c \
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--health-cmd /healthcheck \
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--health-interval 1s \
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--health-retries 3 \
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--health-on-failure=kill \
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healthcheck_i
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run_podman inspect healthcheck_c --format "{{.Config.HealthcheckOnFailureAction}}"
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is "$output" "kill" "on-failure action is set to kill"
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# We can't check for 'starting' because a 1-second interval is too
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# short; it could run healthcheck before we get to our first check.
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#
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# So, just force a healthcheck run, then confirm that it's running.
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run_podman healthcheck run healthcheck_c
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is "$output" "" "output from 'podman healthcheck run'"
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_check_health "All healthy" "
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Status | \"healthy\"
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FailingStreak | 0
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Log[-1].ExitCode | 0
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Log[-1].Output | \"Life is Good on stdout\\\nLife is Good on stderr\"
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"
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# Force a failure
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run_podman exec healthcheck_c touch /uh-oh
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sleep 2
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_check_health "First failure" "
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Status | \"healthy\"
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FailingStreak | [123]
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Log[-1].ExitCode | 1
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Log[-1].Output | \"Uh-oh on stdout!\\\nUh-oh on stderr!\"
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"
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# After three successive failures, container should no longer be healthy
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sleep 5
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_check_health "Three or more failures" "
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Status | \"unhealthy\"
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FailingStreak | [3456]
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Log[-1].ExitCode | 1
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Log[-1].Output | \"Uh-oh on stdout!\\\nUh-oh on stderr!\"
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"
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# now the on-failure should kick in and kill the container
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run_podman wait healthcheck_c
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# Clean up
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run_podman rm -t 0 -f healthcheck_c
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run_podman rmi healthcheck_i
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}
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@test "podman healthcheck - restart cleans up old state" {
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ctr="healthcheck_c"
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img="healthcheck_i"
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_build_health_check_image $img cleanfile
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run_podman run -d --name $ctr \
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--health-cmd /healthcheck \
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--health-retries=2 \
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--health-interval=disable \
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$img
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run_podman container inspect $ctr --format "{{.State.Healthcheck.FailingStreak}}"
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is "$output" "0" "Failing streak of fresh container should be 0"
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# Get the healthcheck to fail
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run_podman exec $ctr touch /uh-oh
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run_podman 1 healthcheck run $ctr
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is "$output" "unhealthy" "output from 'podman healthcheck run'"
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run_podman container inspect $ctr --format "{{.State.Healthcheck.FailingStreak}}"
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is "$output" "1" "Failing streak after one failed healthcheck should be 1"
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run_podman container restart $ctr
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run_podman container inspect $ctr --format "{{.State.Healthcheck.FailingStreak}}"
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is "$output" "0" "Failing streak of restarted container should be 0 again"
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run_podman rm -f -t0 $ctr
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run_podman rmi $img
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}
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@test "podman healthcheck --health-on-failure" {
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run_podman 125 create --health-on-failure=kill $IMAGE
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is "$output" "Error: cannot set on-failure action to kill without a health check"
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ctr="healthcheck_c"
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img="healthcheck_i"
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for policy in none kill restart stop;do
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if [[ $policy == "none" ]];then
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# Do not remove the /uh-oh file for `none` as we want to
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# demonstrate that no action was taken
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_build_health_check_image $img
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else
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_build_health_check_image $img cleanfile
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fi
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# Run that healthcheck image.
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run_podman run -d --name $ctr \
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--health-cmd /healthcheck \
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--health-retries=1 \
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--health-on-failure=$policy \
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--health-interval=disable \
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$img
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# healthcheck should succeed
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run_podman healthcheck run $ctr
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# Now cause the healthcheck to fail
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run_podman exec $ctr touch /uh-oh
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# healthcheck should now fail, with exit status 1 and 'unhealthy' output
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run_podman 1 healthcheck run $ctr
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is "$output" "unhealthy" "output from 'podman healthcheck run' (policy: $policy)"
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if [[ $policy == "restart" ]];then
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# Make sure the container transitions back to running
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run_podman wait --condition=running $ctr
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run_podman inspect $ctr --format "{{.RestartCount}}"
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assert "${#lines[@]}" != 0 "Container has been restarted at least once"
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run_podman container inspect $ctr --format "{{.State.Healthcheck.FailingStreak}}"
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is "$output" "0" "Failing streak of restarted container should be 0 again"
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run_podman healthcheck run $ctr
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elif [[ $policy == "none" ]];then
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run_podman inspect $ctr --format "{{.State.Status}} {{.Config.HealthcheckOnFailureAction}}"
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# Container is still running and health check still broken
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is "$output" "running $policy" "container continued running"
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run_podman 1 healthcheck run $ctr
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is "$output" "unhealthy" "output from 'podman healthcheck run' (policy: $policy)"
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else
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run_podman inspect $ctr --format "{{.State.Status}} {{.Config.HealthcheckOnFailureAction}}"
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# kill and stop yield the container into a non-running state
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is "$output" ".* $policy" "container was stopped/killed (policy: $policy)"
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assert "$output" != "running $policy"
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# also make sure that it's not stuck in the stopping state
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assert "$output" != "stopping $policy"
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fi
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run_podman rm -f -t0 $ctr
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run_podman rmi -f $img
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done
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}
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@test "podman healthcheck --health-on-failure with interval" {
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ctr="healthcheck_c"
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for policy in stop kill restart ;do
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t0=$(date --iso-8601=seconds)
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run_podman run -d --name $ctr \
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--health-cmd /bin/false \
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--health-retries=1 \
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--health-on-failure=$policy \
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--health-interval=1s \
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$IMAGE top
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if [[ $policy == "restart" ]];then
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# Sleeping for 2 seconds makes the test much faster than using
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# podman-wait which would compete with the container getting
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# restarted.
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sleep 2
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# Make sure the container transitions back to running
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run_podman wait --condition=running $ctr
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run_podman inspect $ctr --format "{{.RestartCount}}"
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assert "${#lines[@]}" != 0 "Container has been restarted at least once"
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else
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# kill and stop yield the container into a non-running state
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run_podman wait $ctr
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run_podman inspect $ctr --format "{{.State.Status}} {{.Config.HealthcheckOnFailureAction}}"
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is "$output" ".* $policy" "container was stopped/killed (policy: $policy)"
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assert "$output" != "running $policy"
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# also make sure that it's not stuck in the stopping state
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assert "$output" != "stopping $policy"
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fi
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run_podman rm -f -t0 $ctr
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done
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}
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# vim: filetype=sh
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