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authorJhon Honce <jhonce@redhat.com>2020-12-02 15:30:05 -0700
committerJhon Honce <jhonce@redhat.com>2020-12-02 16:03:56 -0700
commite55320efde85abf42a44fe4e8f19b440d96d1609 (patch)
treebdf89900c3515419215fc9eaec356debb0197b01 /hack
parent7984842d7e55baa8fc9498afa23b62113850feac (diff)
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hack/podman-socat captures the API stream
* verify socat and podman binaries exist * setup a sandboxed podman service * run podman service with socat proxy to capture API stream * clean up sandbox leaving the log files for review Signed-off-by: Jhon Honce <jhonce@redhat.com>
Diffstat (limited to 'hack')
-rwxr-xr-xhack/podman-socat122
1 files changed, 122 insertions, 0 deletions
diff --git a/hack/podman-socat b/hack/podman-socat
new file mode 100755
index 000000000..7bc571816
--- /dev/null
+++ b/hack/podman-socat
@@ -0,0 +1,122 @@
+#!/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 REGISTRIES_CONFIG_PATH=${TMPDIR}/registry.conf
+cat >"$REGISTRIES_CONFIG_PATH" <<-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 \
+ --cni-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