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#!/usr/bin/env bats -*- bats -*-
#
# Basic tests for podman logs
#
load helpers
@test "podman logs - basic test" {
rand_string=$(random_string 40)
run_podman create $IMAGE echo $rand_string
cid="$output"
run_podman logs $cid
is "$output" "" "logs on created container: empty"
run_podman start --attach --interactive $cid
is "$output" "$rand_string" "output from podman-start on created ctr"
is "$output" "$rand_string" "logs of started container"
run_podman logs $cid
is "$output" "$rand_string" "output from podman-logs after container is run"
# test --since with Unix timestamps
run_podman logs --since 1000 $cid
# test --until with Unix timestamps
run_podman logs --until 1000 $cid
run_podman rm $cid
}
function _log_test_multi() {
local driver=$1
skip_if_remote "logs does not support multiple containers when run remotely"
# Under k8s file, 'podman logs' returns just the facts, Ma'am.
# Under journald, there may be other cruft (e.g. container removals)
local etc=
if [[ $driver =~ journal ]]; then
etc='.*'
fi
# Simple helper to make the container starts, below, easier to read
local -a cid
doit() {
run_podman run --log-driver=$driver --rm -d --name "$1" $IMAGE sh -c "$2";
cid+=($(echo "${output:0:12}"))
}
# Not really a guarantee that we'll get a-b-c-d in order, but it's
# the best we can do. The trailing 'sleep' in each container
# minimizes the chance of a race condition in which the container
# is removed before 'podman logs' has a chance to wake up and read
# the final output.
doit c1 "echo a;sleep 10;echo d;sleep 3"
doit c2 "sleep 1;echo b;sleep 2;echo c;sleep 3"
run_podman logs -f c1 c2
is "$output" \
"${cid[0]} a$etc
${cid[1]} b$etc
${cid[1]} c$etc
${cid[0]} d" "Sequential output from logs"
}
@test "podman logs - multi k8s-file" {
_log_test_multi k8s-file
}
@test "podman logs - multi journald" {
# We can't use journald on RHEL as rootless: rhbz#1895105
skip_if_journald_unavailable
_log_test_multi journald
}
@test "podman logs - journald log driver requires journald events backend" {
skip_if_remote "remote does not support --events-backend"
# We can't use journald on RHEL as rootless: rhbz#1895105
skip_if_journald_unavailable
run_podman --events-backend=file run --log-driver=journald -d --name test --replace $IMAGE ls /
run_podman --events-backend=file logs test
run_podman 125 --events-backend=file logs --follow test
is "$output" "Error: using --follow with the journald --log-driver but without the journald --events-backend (file) is not supported" "journald logger requires journald eventer"
}
function _log_test_since() {
local driver=$1
s_before="before_$(random_string)_${driver}"
s_after="after_$(random_string)_${driver}"
before=$(date --iso-8601=seconds)
run_podman run --log-driver=$driver -d --name test $IMAGE sh -c \
"echo $s_before; trap 'echo $s_after; exit' SIGTERM; while :; do sleep 1; done"
# sleep a second to make sure the date is after the first echo
sleep 1
after=$(date --iso-8601=seconds)
run_podman stop test
run_podman logs test
is "$output" \
"$s_before
$s_after"
run_podman logs --since $before test
is "$output" \
"$s_before
$s_after"
run_podman logs --since $after test
is "$output" "$s_after"
run_podman rm -f test
}
@test "podman logs - since k8s-file" {
_log_test_since k8s-file
}
@test "podman logs - since journald" {
# We can't use journald on RHEL as rootless: rhbz#1895105
skip_if_journald_unavailable
_log_test_since journald
}
function _log_test_until() {
local driver=$1
s_before="before_$(random_string)_${driver}"
s_after="after_$(random_string)_${driver}"
before=$(date --iso-8601=seconds)
sleep 1
run_podman run --log-driver=$driver -d --name test $IMAGE sh -c \
"echo $s_before; trap 'echo $s_after; exit' SIGTERM; while :; do sleep 1; done"
# sleep a second to make sure the date is after the first echo
sleep 1
run_podman stop test
run_podman wait test
# Sigh. Stupid journald has a lag. Wait a few seconds for it to catch up.
retries=20
s_both="$s_before
$s_after"
while [[ $retries -gt 0 ]]; do
run_podman logs test
if [[ "$output" = "$s_both" ]]; then
break
fi
retries=$((retries - 1))
sleep 0.1
done
if [[ $retries -eq 0 ]]; then
die "Timed out waiting for before&after in podman logs: $output"
fi
run_podman logs --until $before test
is "$output" "" "podman logs --until before"
after=$(date --date='+1 second' --iso-8601=seconds)
run_podman logs --until $after test
is "$output" "$s_both" "podman logs --until after"
run_podman rm -f test
}
@test "podman logs - until k8s-file" {
_log_test_until k8s-file
}
@test "podman logs - until journald" {
# We can't use journald on RHEL as rootless: rhbz#1895105
skip_if_journald_unavailable
_log_test_until journald
}
function _log_test_follow() {
local driver=$1
cname=$(random_string)
contentA=$(random_string)
contentB=$(random_string)
contentC=$(random_string)
# Note: it seems we need at least three log lines to hit #11461.
run_podman run --log-driver=$driver --name $cname $IMAGE sh -c "echo $contentA; echo $contentB; echo $contentC"
run_podman logs -f $cname
is "$output" "$contentA
$contentB
$contentC" "logs -f on exitted container works"
run_podman rm -f $cname
}
@test "podman logs - --follow k8s-file" {
_log_test_follow k8s-file
}
@test "podman logs - --follow journald" {
# We can't use journald on RHEL as rootless: rhbz#1895105
skip_if_journald_unavailable
_log_test_follow journald
}
# vim: filetype=sh
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