[Backport 5.1] wolfi: cadvisor entrypoint (#54809) (#54870)

Fixes the cadvisor entry point, which was being split onto new lines,
meaning we were dropping some metrics like memory as reported by
@michaellzc.

As part of the testing I tried just downloading the binary from github,
rather than building it from scratch. That didn't turn out to the final
solution so that's an OPTIONAL leave in, but to me seems like an easier
approach than compiling ourselves.

With a rebuild of the base image we're also now running cadvisor 0.47.3

Author: willdollman

dev/oci_deps.bzl

@@ -24,7 +24,7 @@ def oci_deps():
 
     oci_pull(
         name = "wolfi_cadvisor_base",
-        digest = "sha256:2e5aec9ba5a4835b4c35103bd27ad2ad3e65a064ec5001a35168044dd8c06a4a",
+        digest = "sha256:39f800ff006bbe579c71eaecc0157d5a57c7e2c0b11ba7a262eb8aec9fd848e0",
         image = "us.gcr.io/sourcegraph-dev/wolfi-cadvisor-base",
     )
 

docker-images/cadvisor/BUILD.bazel

@@ -0,0 +1,12 @@
+#!/bin/sh
+/usr/bin/cadvisor \
+  -enable_metrics=cpu,memory,disk,network \
+  -logtostderr \
+  -port=48080 \
+  -docker_only \
+  -housekeeping_interval=10s \
+  -max_housekeeping_interval=15s \
+  -event_storage_event_limit=default=0 \
+  -v=3 \
+  -event_storage_age_limit=default=0 \
+  -containerd=/var/run/containerd/containerd.sock

docker-images/cadvisor/entrypoint.sh

@@ -9,4 +9,4 @@ contents:
     ## cadvisor dependencies
     - cadvisor
 
-# MANUAL REBUILD: Wed Jun 14 15:27:52 BST 2023
+# MANUAL REBUILD: Wed Jul 12 08:42:56 -05 2023