mirror of
https://github.com/containers/podman
synced 2024-10-20 17:23:30 +00:00
711 lines
21 KiB
Bash
711 lines
21 KiB
Bash
# -*- bash -*-
|
|
|
|
# Podman command to run; may be podman-remote
|
|
PODMAN=${PODMAN:-podman}
|
|
|
|
# Standard image to use for most tests
|
|
PODMAN_TEST_IMAGE_REGISTRY=${PODMAN_TEST_IMAGE_REGISTRY:-"quay.io"}
|
|
PODMAN_TEST_IMAGE_USER=${PODMAN_TEST_IMAGE_USER:-"libpod"}
|
|
PODMAN_TEST_IMAGE_NAME=${PODMAN_TEST_IMAGE_NAME:-"testimage"}
|
|
PODMAN_TEST_IMAGE_TAG=${PODMAN_TEST_IMAGE_TAG:-"20210610"}
|
|
PODMAN_TEST_IMAGE_FQN="$PODMAN_TEST_IMAGE_REGISTRY/$PODMAN_TEST_IMAGE_USER/$PODMAN_TEST_IMAGE_NAME:$PODMAN_TEST_IMAGE_TAG"
|
|
PODMAN_TEST_IMAGE_ID=
|
|
|
|
# Remote image that we *DO NOT* fetch or keep by default; used for testing pull
|
|
# This has changed in 2021, from 0 through 3, various iterations of getting
|
|
# multiarch to work. It should change only very rarely.
|
|
PODMAN_NONLOCAL_IMAGE_TAG=${PODMAN_NONLOCAL_IMAGE_TAG:-"00000003"}
|
|
PODMAN_NONLOCAL_IMAGE_FQN="$PODMAN_TEST_IMAGE_REGISTRY/$PODMAN_TEST_IMAGE_USER/$PODMAN_TEST_IMAGE_NAME:$PODMAN_NONLOCAL_IMAGE_TAG"
|
|
|
|
# Because who wants to spell that out each time?
|
|
IMAGE=$PODMAN_TEST_IMAGE_FQN
|
|
|
|
# Default timeout for a podman command.
|
|
PODMAN_TIMEOUT=${PODMAN_TIMEOUT:-120}
|
|
|
|
# Prompt to display when logging podman commands; distinguish root/rootless
|
|
_LOG_PROMPT='$'
|
|
if [ $(id -u) -eq 0 ]; then
|
|
_LOG_PROMPT='#'
|
|
fi
|
|
|
|
###############################################################################
|
|
# BEGIN setup/teardown tools
|
|
|
|
# Provide common setup and teardown functions, but do not name them such!
|
|
# That way individual tests can override with their own setup/teardown,
|
|
# while retaining the ability to include these if they so desire.
|
|
|
|
# Some CI systems set this to runc, overriding the default crun.
|
|
# Although it would be more elegant to override options in run_podman(),
|
|
# we instead override $PODMAN itself because some tests (170-run-userns)
|
|
# have to invoke $PODMAN directly.
|
|
if [[ -n $OCI_RUNTIME ]]; then
|
|
if [[ -z $CONTAINERS_CONF ]]; then
|
|
# FIXME: BATS provides no mechanism for end-of-run cleanup[1]; how
|
|
# can we avoid leaving this file behind when we finish?
|
|
# [1] https://github.com/bats-core/bats-core/issues/39
|
|
export CONTAINERS_CONF=$(mktemp --tmpdir=${BATS_TMPDIR:-/tmp} podman-bats-XXXXXXX.containers.conf)
|
|
cat >$CONTAINERS_CONF <<EOF
|
|
[engine]
|
|
runtime="$OCI_RUNTIME"
|
|
EOF
|
|
fi
|
|
fi
|
|
|
|
# Setup helper: establish a test environment with exactly the images needed
|
|
function basic_setup() {
|
|
# Clean up all containers
|
|
run_podman rm -t 0 --all --force --ignore
|
|
|
|
# ...including external (buildah) ones
|
|
run_podman ps --all --external --format '{{.ID}} {{.Names}}'
|
|
for line in "${lines[@]}"; do
|
|
set $line
|
|
echo "# setup(): removing stray external container $1 ($2)" >&3
|
|
run_podman rm -f $1
|
|
done
|
|
|
|
# Clean up all images except those desired
|
|
found_needed_image=
|
|
run_podman images --all --format '{{.Repository}}:{{.Tag}} {{.ID}}'
|
|
for line in "${lines[@]}"; do
|
|
set $line
|
|
if [ "$1" == "$PODMAN_TEST_IMAGE_FQN" ]; then
|
|
if [[ -z "$PODMAN_TEST_IMAGE_ID" ]]; then
|
|
# This will probably only trigger the 2nd time through setup
|
|
PODMAN_TEST_IMAGE_ID=$2
|
|
fi
|
|
found_needed_image=1
|
|
else
|
|
# Always remove image that doesn't match by name
|
|
echo "# setup(): removing stray image $1" >&3
|
|
run_podman rmi --force "$1" >/dev/null 2>&1 || true
|
|
|
|
# Tagged image will have same IID as our test image; don't rmi it.
|
|
if [[ $2 != "$PODMAN_TEST_IMAGE_ID" ]]; then
|
|
echo "# setup(): removing stray image $2" >&3
|
|
run_podman rmi --force "$2" >/dev/null 2>&1 || true
|
|
fi
|
|
fi
|
|
done
|
|
|
|
# Make sure desired images are present
|
|
if [ -z "$found_needed_image" ]; then
|
|
run_podman pull "$PODMAN_TEST_IMAGE_FQN"
|
|
fi
|
|
|
|
# Argh. Although BATS provides $BATS_TMPDIR, it's just /tmp!
|
|
# That's bloody worthless. Let's make our own, in which subtests
|
|
# can write whatever they like and trust that it'll be deleted
|
|
# on cleanup.
|
|
# TODO: do this outside of setup, so it carries across tests?
|
|
PODMAN_TMPDIR=$(mktemp -d --tmpdir=${BATS_TMPDIR:-/tmp} podman_bats.XXXXXX)
|
|
|
|
# In the unlikely event that a test runs is() before a run_podman()
|
|
MOST_RECENT_PODMAN_COMMAND=
|
|
}
|
|
|
|
# Basic teardown: remove all pods and containers
|
|
function basic_teardown() {
|
|
echo "# [teardown]" >&2
|
|
run_podman '?' pod rm -t 0 --all --force --ignore
|
|
run_podman '?' rm -t 0 --all --force --ignore
|
|
|
|
command rm -rf $PODMAN_TMPDIR
|
|
}
|
|
|
|
|
|
# Provide the above as default methods.
|
|
function setup() {
|
|
basic_setup
|
|
}
|
|
|
|
function teardown() {
|
|
basic_teardown
|
|
}
|
|
|
|
|
|
# Helpers useful for tests running rmi
|
|
function archive_image() {
|
|
local image=$1
|
|
|
|
# FIXME: refactor?
|
|
archive_basename=$(echo $1 | tr -c a-zA-Z0-9._- _)
|
|
archive=$BATS_TMPDIR/$archive_basename.tar
|
|
|
|
run_podman save -o $archive $image
|
|
}
|
|
|
|
function restore_image() {
|
|
local image=$1
|
|
|
|
archive_basename=$(echo $1 | tr -c a-zA-Z0-9._- _)
|
|
archive=$BATS_TMPDIR/$archive_basename.tar
|
|
|
|
run_podman restore $archive
|
|
}
|
|
|
|
# END setup/teardown tools
|
|
###############################################################################
|
|
# BEGIN podman helpers
|
|
|
|
################
|
|
# run_podman # Invoke $PODMAN, with timeout, using BATS 'run'
|
|
################
|
|
#
|
|
# This is the preferred mechanism for invoking podman: first, it
|
|
# invokes $PODMAN, which may be 'podman-remote' or '/some/path/podman'.
|
|
#
|
|
# Second, we use 'timeout' to abort (with a diagnostic) if something
|
|
# takes too long; this is preferable to a CI hang.
|
|
#
|
|
# Third, we log the command run and its output. This doesn't normally
|
|
# appear in BATS output, but it will if there's an error.
|
|
#
|
|
# Next, we check exit status. Since the normal desired code is 0,
|
|
# that's the default; but the first argument can override:
|
|
#
|
|
# run_podman 125 nonexistent-subcommand
|
|
# run_podman '?' some-other-command # let our caller check status
|
|
#
|
|
# Since we use the BATS 'run' mechanism, $output and $status will be
|
|
# defined for our caller.
|
|
#
|
|
function run_podman() {
|
|
# Number as first argument = expected exit code; default 0
|
|
expected_rc=0
|
|
case "$1" in
|
|
[0-9]) expected_rc=$1; shift;;
|
|
[1-9][0-9]) expected_rc=$1; shift;;
|
|
[12][0-9][0-9]) expected_rc=$1; shift;;
|
|
'?') expected_rc= ; shift;; # ignore exit code
|
|
esac
|
|
|
|
# Remember command args, for possible use in later diagnostic messages
|
|
MOST_RECENT_PODMAN_COMMAND="podman $*"
|
|
|
|
# stdout is only emitted upon error; this echo is to help a debugger
|
|
echo "$_LOG_PROMPT $PODMAN $*"
|
|
# BATS hangs if a subprocess remains and keeps FD 3 open; this happens
|
|
# if podman crashes unexpectedly without cleaning up subprocesses.
|
|
run timeout --foreground -v --kill=10 $PODMAN_TIMEOUT $PODMAN $_PODMAN_TEST_OPTS "$@" 3>/dev/null
|
|
# without "quotes", multiple lines are glommed together into one
|
|
if [ -n "$output" ]; then
|
|
echo "$output"
|
|
fi
|
|
if [ "$status" -ne 0 ]; then
|
|
echo -n "[ rc=$status ";
|
|
if [ -n "$expected_rc" ]; then
|
|
if [ "$status" -eq "$expected_rc" ]; then
|
|
echo -n "(expected) ";
|
|
else
|
|
echo -n "(** EXPECTED $expected_rc **) ";
|
|
fi
|
|
fi
|
|
echo "]"
|
|
fi
|
|
|
|
if [ "$status" -eq 124 ]; then
|
|
if expr "$output" : ".*timeout: sending" >/dev/null; then
|
|
# It's possible for a subtest to _want_ a timeout
|
|
if [[ "$expected_rc" != "124" ]]; then
|
|
echo "*** TIMED OUT ***"
|
|
false
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if [ -n "$expected_rc" ]; then
|
|
if [ "$status" -ne "$expected_rc" ]; then
|
|
die "exit code is $status; expected $expected_rc"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
|
|
# Wait for certain output from a container, indicating that it's ready.
|
|
function wait_for_output {
|
|
local sleep_delay=5
|
|
local how_long=$PODMAN_TIMEOUT
|
|
local expect=
|
|
local cid=
|
|
|
|
# Arg processing. A single-digit number is how long to sleep between
|
|
# iterations; a 2- or 3-digit number is the total time to wait; all
|
|
# else are, in order, the string to expect and the container name/ID.
|
|
local i
|
|
for i in "$@"; do
|
|
if expr "$i" : '[0-9]\+$' >/dev/null; then
|
|
if [ $i -le 9 ]; then
|
|
sleep_delay=$i
|
|
else
|
|
how_long=$i
|
|
fi
|
|
elif [ -z "$expect" ]; then
|
|
expect=$i
|
|
else
|
|
cid=$i
|
|
fi
|
|
done
|
|
|
|
[ -n "$cid" ] || die "FATAL: wait_for_output: no container name/ID in '$*'"
|
|
|
|
t1=$(expr $SECONDS + $how_long)
|
|
while [ $SECONDS -lt $t1 ]; do
|
|
run_podman logs $cid
|
|
logs=$output
|
|
if expr "$logs" : ".*$expect" >/dev/null; then
|
|
return
|
|
fi
|
|
|
|
# Barf if container is not running
|
|
run_podman inspect --format '{{.State.Running}}' $cid
|
|
if [ $output != "true" ]; then
|
|
run_podman inspect --format '{{.State.ExitCode}}' $cid
|
|
exitcode=$output
|
|
die "Container exited (status: $exitcode) before we saw '$expect': $logs"
|
|
fi
|
|
|
|
sleep $sleep_delay
|
|
done
|
|
|
|
die "timed out waiting for '$expect' from $cid"
|
|
}
|
|
|
|
# Shortcut for the lazy
|
|
function wait_for_ready {
|
|
wait_for_output 'READY' "$@"
|
|
}
|
|
|
|
######################
|
|
# random_free_port # Pick an available port within a specified range
|
|
######################
|
|
function random_free_port() {
|
|
local range=${1:-5000-5999}
|
|
|
|
local port
|
|
for port in $(shuf -i ${range}); do
|
|
if ! { exec {unused_fd}<> /dev/tcp/127.0.0.1/$port; } &>/dev/null; then
|
|
echo $port
|
|
return
|
|
fi
|
|
done
|
|
|
|
die "Could not find open port in range $range"
|
|
}
|
|
|
|
###################
|
|
# wait_for_port # Returns once port is available on host
|
|
###################
|
|
function wait_for_port() {
|
|
local host=$1 # Probably "localhost"
|
|
local port=$2 # Numeric port
|
|
local _timeout=${3:-5} # Optional; default to 5 seconds
|
|
|
|
# Wait
|
|
while [ $_timeout -gt 0 ]; do
|
|
{ exec {unused_fd}<> /dev/tcp/$host/$port; } &>/dev/null && return
|
|
sleep 1
|
|
_timeout=$(( $_timeout - 1 ))
|
|
done
|
|
|
|
die "Timed out waiting for $host:$port"
|
|
}
|
|
|
|
# END podman helpers
|
|
###############################################################################
|
|
# BEGIN miscellaneous tools
|
|
|
|
# Shortcuts for common needs:
|
|
function is_ubuntu() {
|
|
grep -qiw ubuntu /etc/os-release
|
|
}
|
|
|
|
function is_rootless() {
|
|
[ "$(id -u)" -ne 0 ]
|
|
}
|
|
|
|
function is_remote() {
|
|
[[ "$PODMAN" =~ -remote ]]
|
|
}
|
|
|
|
function is_cgroupsv1() {
|
|
# WARNING: This will break if there's ever a cgroups v3
|
|
! is_cgroupsv2
|
|
}
|
|
|
|
# True if cgroups v2 are enabled
|
|
function is_cgroupsv2() {
|
|
cgroup_type=$(stat -f -c %T /sys/fs/cgroup)
|
|
test "$cgroup_type" = "cgroup2fs"
|
|
}
|
|
|
|
# Returns the OCI runtime *basename* (typically crun or runc). Much as we'd
|
|
# love to cache this result, we probably shouldn't.
|
|
function podman_runtime() {
|
|
# This function is intended to be used as '$(podman_runtime)', i.e.
|
|
# our caller wants our output. run_podman() messes with output because
|
|
# it emits the command invocation to stdout, hence the redirection.
|
|
run_podman info --format '{{ .Host.OCIRuntime.Name }}' >/dev/null
|
|
basename "${output:-[null]}"
|
|
}
|
|
|
|
# rhbz#1895105: rootless journald is unavailable except to users in
|
|
# certain magic groups; which our testuser account does not belong to
|
|
# (intentional: that is the RHEL default, so that's the setup we test).
|
|
function journald_unavailable() {
|
|
if ! is_rootless; then
|
|
# root must always have access to journal
|
|
return 1
|
|
fi
|
|
|
|
run journalctl -n 1
|
|
if [[ $status -eq 0 ]]; then
|
|
return 1
|
|
fi
|
|
|
|
if [[ $output =~ permission ]]; then
|
|
return 0
|
|
fi
|
|
|
|
# This should never happen; if it does, it's likely that a subsequent
|
|
# test will fail. This output may help track that down.
|
|
echo "WEIRD: 'journalctl -n 1' failed with a non-permission error:"
|
|
echo "$output"
|
|
return 1
|
|
}
|
|
|
|
###########################
|
|
# _add_label_if_missing # make sure skip messages include rootless/remote
|
|
###########################
|
|
function _add_label_if_missing() {
|
|
local msg="$1"
|
|
local want="$2"
|
|
|
|
if [ -z "$msg" ]; then
|
|
echo
|
|
elif expr "$msg" : ".*$want" &>/dev/null; then
|
|
echo "$msg"
|
|
else
|
|
echo "[$want] $msg"
|
|
fi
|
|
}
|
|
|
|
######################
|
|
# skip_if_rootless # ...with an optional message
|
|
######################
|
|
function skip_if_rootless() {
|
|
if is_rootless; then
|
|
local msg=$(_add_label_if_missing "$1" "rootless")
|
|
skip "${msg:-not applicable under rootless podman}"
|
|
fi
|
|
}
|
|
|
|
######################
|
|
# skip_if_not_rootless # ...with an optional message
|
|
######################
|
|
function skip_if_not_rootless() {
|
|
if ! is_rootless; then
|
|
local msg=$(_add_label_if_missing "$1" "rootfull")
|
|
skip "${msg:-not applicable under rootlfull podman}"
|
|
fi
|
|
}
|
|
|
|
####################
|
|
# skip_if_remote # ...with an optional message
|
|
####################
|
|
function skip_if_remote() {
|
|
if is_remote; then
|
|
local msg=$(_add_label_if_missing "$1" "remote")
|
|
skip "${msg:-test does not work with podman-remote}"
|
|
fi
|
|
}
|
|
|
|
########################
|
|
# skip_if_no_selinux #
|
|
########################
|
|
function skip_if_no_selinux() {
|
|
if [ ! -e /usr/sbin/selinuxenabled ]; then
|
|
skip "selinux not available"
|
|
elif ! /usr/sbin/selinuxenabled; then
|
|
skip "selinux disabled"
|
|
fi
|
|
}
|
|
|
|
#######################
|
|
# skip_if_cgroupsv1 # ...with an optional message
|
|
#######################
|
|
function skip_if_cgroupsv1() {
|
|
if ! is_cgroupsv2; then
|
|
skip "${1:-test requires cgroupsv2}"
|
|
fi
|
|
}
|
|
|
|
######################
|
|
# skip_if_rootless_cgroupsv1 # ...with an optional message
|
|
######################
|
|
function skip_if_rootless_cgroupsv1() {
|
|
if is_rootless; then
|
|
if ! is_cgroupsv2; then
|
|
local msg=$(_add_label_if_missing "$1" "rootless cgroupvs1")
|
|
skip "${msg:-not supported as rootless under cgroupsv1}"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
##################################
|
|
# skip_if_journald_unavailable # rhbz#1895105: rootless journald permissions
|
|
##################################
|
|
function skip_if_journald_unavailable {
|
|
if journald_unavailable; then
|
|
skip "Cannot use rootless journald on this system"
|
|
fi
|
|
}
|
|
|
|
function skip_if_root_ubuntu {
|
|
if is_ubuntu; then
|
|
if ! is_remote; then
|
|
if ! is_rootless; then
|
|
skip "Cannot run this test on rootful ubuntu, usually due to user errors"
|
|
fi
|
|
fi
|
|
fi
|
|
}
|
|
|
|
#########
|
|
# die # Abort with helpful message
|
|
#########
|
|
function die() {
|
|
# FIXME: handle multi-line output
|
|
echo "#/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv" >&2
|
|
echo "#| FAIL: $*" >&2
|
|
echo "#\\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^" >&2
|
|
false
|
|
}
|
|
|
|
|
|
########
|
|
# is # Compare actual vs expected string; fail w/diagnostic if mismatch
|
|
########
|
|
#
|
|
# Compares given string against expectations, using 'expr' to allow patterns.
|
|
#
|
|
# Examples:
|
|
#
|
|
# is "$actual" "$expected" "descriptive test name"
|
|
# is "apple" "orange" "name of a test that will fail in most universes"
|
|
# is "apple" "[a-z]\+" "this time it should pass"
|
|
#
|
|
function is() {
|
|
local actual="$1"
|
|
local expect="$2"
|
|
local testname="${3:-${MOST_RECENT_PODMAN_COMMAND:-[no test name given]}}"
|
|
|
|
local is_expr=
|
|
if [ -z "$expect" ]; then
|
|
if [ -z "$actual" ]; then
|
|
# Both strings are empty.
|
|
return
|
|
fi
|
|
expect='[no output]'
|
|
elif [[ "$actual" = "$expect" ]]; then
|
|
# Strings are identical.
|
|
return
|
|
else
|
|
# Strings are not identical. Are there wild cards in our expect string?
|
|
if expr "$expect" : ".*[^\\][\*\[]" >/dev/null; then
|
|
# There is a '[' or '*' without a preceding backslash.
|
|
is_expr=' (using expr)'
|
|
elif [[ "${expect:0:1}" = '[' ]]; then
|
|
# String starts with '[', e.g. checking seconds like '[345]'
|
|
is_expr=' (using expr)'
|
|
fi
|
|
if [[ -n "$is_expr" ]]; then
|
|
if expr "$actual" : "$expect" >/dev/null; then
|
|
return
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# This is a multi-line message, which may in turn contain multi-line
|
|
# output, so let's format it ourself, readably
|
|
local -a actual_split
|
|
readarray -t actual_split <<<"$actual"
|
|
printf "#/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv\n" >&2
|
|
printf "#| FAIL: $testname\n" >&2
|
|
printf "#| expected: '%s'%s\n" "$expect" "$is_expr" >&2
|
|
printf "#| actual: '%s'\n" "${actual_split[0]}" >&2
|
|
local line
|
|
for line in "${actual_split[@]:1}"; do
|
|
printf "#| > '%s'\n" "$line" >&2
|
|
done
|
|
printf "#\\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" >&2
|
|
false
|
|
}
|
|
|
|
|
|
############
|
|
# dprint # conditional debug message
|
|
############
|
|
#
|
|
# Set PODMAN_TEST_DEBUG to the name of one or more functions you want to debug
|
|
#
|
|
# Examples:
|
|
#
|
|
# $ PODMAN_TEST_DEBUG=parse_table bats .
|
|
# $ PODMAN_TEST_DEBUG="test_podman_images test_podman_run" bats .
|
|
#
|
|
function dprint() {
|
|
test -z "$PODMAN_TEST_DEBUG" && return
|
|
|
|
caller="${FUNCNAME[1]}"
|
|
|
|
# PODMAN_TEST_DEBUG is a space-separated list of desired functions
|
|
# e.g. "parse_table test_podman_images" (or even just "table")
|
|
for want in $PODMAN_TEST_DEBUG; do
|
|
# Check if our calling function matches any of the desired strings
|
|
if expr "$caller" : ".*$want" >/dev/null; then
|
|
echo "# ${FUNCNAME[1]}() : $*" >&3
|
|
return
|
|
fi
|
|
done
|
|
}
|
|
|
|
|
|
#################
|
|
# parse_table # Split a table on '|' delimiters; return space-separated
|
|
#################
|
|
#
|
|
# See sample .bats scripts for examples. The idea is to list a set of
|
|
# tests in a table, then use simple logic to iterate over each test.
|
|
# Columns are separated using '|' (pipe character) because sometimes
|
|
# we need spaces in our fields.
|
|
#
|
|
function parse_table() {
|
|
while read line; do
|
|
test -z "$line" && continue
|
|
|
|
declare -a row=()
|
|
while read col; do
|
|
dprint "col=<<$col>>"
|
|
row+=("$col")
|
|
done < <(echo "$line" | sed -E -e 's/(^|\s)\|(\s|$)/\n /g' | sed -e 's/^ *//' -e 's/\\/\\\\/g')
|
|
# the above seds:
|
|
# 1) Convert '|' to newline, but only if bracketed by spaces or
|
|
# at beginning/end of line (this allows 'foo|bar' in tests);
|
|
# 2) then remove leading whitespace;
|
|
# 3) then double-escape all backslashes
|
|
|
|
printf "%q " "${row[@]}"
|
|
printf "\n"
|
|
done <<<"$1"
|
|
}
|
|
|
|
|
|
###################
|
|
# random_string # Returns a pseudorandom human-readable string
|
|
###################
|
|
#
|
|
# Numeric argument, if present, is desired length of string
|
|
#
|
|
function random_string() {
|
|
local length=${1:-10}
|
|
|
|
head /dev/urandom | tr -dc a-zA-Z0-9 | head -c$length
|
|
}
|
|
|
|
|
|
###########################
|
|
# random_rfc1918_subnet #
|
|
###########################
|
|
#
|
|
# Use the class B set, because much of our CI environment (Google, RH)
|
|
# already uses up much of the class A, and it's really hard to test
|
|
# if a block is in use.
|
|
#
|
|
# This returns THREE OCTETS! It is up to our caller to append .0/24, .255, &c.
|
|
#
|
|
function random_rfc1918_subnet() {
|
|
local retries=1024
|
|
|
|
while [ "$retries" -gt 0 ];do
|
|
local cidr=172.$(( 16 + $RANDOM % 16 )).$(( $RANDOM & 255 ))
|
|
|
|
in_use=$(ip route list | fgrep $cidr)
|
|
if [ -z "$in_use" ]; then
|
|
echo "$cidr"
|
|
return
|
|
fi
|
|
|
|
retries=$(( retries - 1 ))
|
|
done
|
|
|
|
die "Could not find a random not-in-use rfc1918 subnet"
|
|
}
|
|
|
|
|
|
#########################
|
|
# find_exec_pid_files # Returns nothing or exec_pid hash files
|
|
#########################
|
|
#
|
|
# Return exec_pid hash files if exists, otherwise, return nothing
|
|
#
|
|
function find_exec_pid_files() {
|
|
run_podman info --format '{{.Store.RunRoot}}'
|
|
local storage_path="$output"
|
|
if [ -d $storage_path ]; then
|
|
find $storage_path -type f -iname 'exec_pid_*'
|
|
fi
|
|
}
|
|
|
|
|
|
#############################
|
|
# remove_same_dev_warning # Filter out useless warning from output
|
|
#############################
|
|
#
|
|
# On some CI systems, 'podman run --privileged' emits a useless warning:
|
|
#
|
|
# WARNING: The same type, major and minor should not be used for multiple devices.
|
|
#
|
|
# This obviously screws us up when we look at output results.
|
|
#
|
|
# This function removes the warning from $output and $lines. We don't
|
|
# do a full string match because there's another variant of that message:
|
|
#
|
|
# WARNING: Creating device "/dev/null" with same type, major and minor as existing "/dev/foodevdir/null".
|
|
#
|
|
# (We should never again see that precise error ever again, but we could
|
|
# see variants of it).
|
|
#
|
|
function remove_same_dev_warning() {
|
|
# No input arguments. We operate in-place on $output and $lines
|
|
|
|
local i=0
|
|
local -a new_lines=()
|
|
while [[ $i -lt ${#lines[@]} ]]; do
|
|
if expr "${lines[$i]}" : 'WARNING: .* same type, major' >/dev/null; then
|
|
:
|
|
else
|
|
new_lines+=("${lines[$i]}")
|
|
fi
|
|
i=$(( i + 1 ))
|
|
done
|
|
|
|
lines=("${new_lines[@]}")
|
|
output=$(printf '%s\n' "${lines[@]}")
|
|
}
|
|
|
|
# run 'podman help', parse the output looking for 'Available Commands';
|
|
# return that list.
|
|
function _podman_commands() {
|
|
dprint "$@"
|
|
run_podman help "$@" |
|
|
awk '/^Available Commands:/{ok=1;next}/^Options:/{ok=0}ok { print $1 }' |
|
|
grep .
|
|
"$output"
|
|
}
|
|
|
|
# END miscellaneous tools
|
|
###############################################################################
|