podman/hack/podman-socat
Anders F Björklund 336055fe3b Use url with scheme and path for the unix address
Shortcuts like unix:path and unix:/path do not work everywhere,
so make sure to use unix://path when quoting the url (or address)

Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>
2023-09-11 07:55:12 +02:00

123 lines
2.7 KiB
Bash
Executable file

#!/bin/bash -e
# Execute podman while capturing the API stream
#
# Script will run an instance of podman sand-boxed, the API stream will be captured and then formatted for readability.
if [[ $(id -u) != 0 ]]; then
echo >&2 "$0 must be run as root."
exit 2
fi
if ! command -v socat >/dev/null 2>&1; then
echo 1>&2 "socat not found on PATH"
fi
PODMAN=${PODMAN:-podman}
if ! command -v "$PODMAN" >/dev/null 2>&1; then
echo 1>&2 "$PODMAN not found on PATH"
fi
function usage() {
echo 1>&2 $0 '[-v] [-h]'
}
while getopts "vh" arg; do
case $arg in
v)
VERBOSE='-v'
export PODMAN_LOG_LEVEL=debug
;;
h)
usage
exit 0
;;
\?)
usage
exit 2
;;
esac
done
shift $((OPTIND - 1))
function cleanup() {
set +xeuo pipefail
rm -r "$1"
kill -9 $REAP_PIDS
sed -e 's/^> /\nClient Request> /' -e 's/^< /\nServer Response< /' -i /tmp/podman-socat.log
}
# Create temporary directory for storage
export TMPDIR=$(mktemp -d /tmp/podman.XXXXXXXXXX)
trap "cleanup $TMPDIR" EXIT
# Need locations to store stuff
mkdir -p "${TMPDIR}"/{podman,crio,crio-run,cni/net.d,ctnr,tunnel}
export CONTAINERS_REGISTRIES_CONF=${TMPDIR}/registry.conf
cat >"$CONTAINERS_REGISTRIES_CONF" <<-EOT
[registries.search]
registries = ['docker.io']
[registries.insecure]
registries = []
[registries.block]
registries = []
EOT
export CNI_CONFIG_PATH=${TMPDIR}/cni/net.d
cat >"$CNI_CONFIG_PATH"/87-podman-bridge.conflist <<-EOT
{
"cniVersion": "0.3.0",
"name": "podman",
"plugins": [{
"type": "bridge",
"bridge": "cni0",
"isGateway": true,
"ipMasq": true,
"ipam": {
"type": "host-local",
"subnet": "10.88.0.0/16",
"routes": [{
"dst": "0.0.0.0/0"
}]
}
},
{
"type": "portmap",
"capabilities": {
"portMappings": true
}
}
]
}
EOT
PODMAN_ARGS="--storage-driver=vfs \
--root=${TMPDIR}/crio \
--runroot=${TMPDIR}/crio-run \
--network-config-dir=$CNI_CONFIG_PATH \
--cgroup-manager=systemd \
"
if [[ -n $VERBOSE ]]; then
PODMAN_ARGS="$PODMAN_ARGS --log-level=$PODMAN_LOG_LEVEL --syslog=true"
fi
PODMAN="$PODMAN $PODMAN_ARGS"
PODMAN_HOST="${TMPDIR}/podman/podman-socat.sock"
SOCAT_HOST="${TMPDIR}/podman/podman.sock"
cat <<-EOT
Podman service running at unix://$SOCAT_HOST
See /tmp/podman-socat.log for API stream capture
See /tmp/podman-service.log for service logging
usage: sudo bin/podman-remote --url unix://$SOCAT_HOST images
^C to exit
EOT
$PODMAN system service --timeout=0 "unix://$PODMAN_HOST" >/tmp/podman-service.log 2>&1 &
REAP_PIDS=$!
socat -v "UNIX-LISTEN:$SOCAT_HOST",fork,reuseaddr,unlink-early "UNIX-CONNECT:$PODMAN_HOST" >/tmp/podman-socat.log 2>&1