containermetadata: fix container ID parsing

containermetadata/containermetadata.go

@@ -88,9 +88,15 @@ var (
 	dockerBuildkitPattern = regexp.MustCompile(`\d+:.*:/.*/*docker/buildkit/([0-9a-z]+)`)
 	lxcPattern            = regexp.MustCompile(`\d+::/lxc\.(monitor|payload)\.([a-zA-Z]+)/`)
 	containerdPattern     = regexp.MustCompile(`\d+:.+:/([a-zA-Z0-9_-]+)/+([a-zA-Z0-9_-]+)`)
-	defaultPattern        = regexp.MustCompile(`^.*/(?:.*[-:])?([0-9a-f]+)(?:\.|\s*$)`)
-
-	containerIDPattern = regexp.MustCompile(`.+://([0-9a-f]{64})`)
+	defaultPattern        = regexp.MustCompile(`^.*/(?:.*[-:])?` +
+		containerIDPatternStr + `(?:\.|\s*$)`)
+
+	containerIDPatternStr = `([0-9a-f]{64})|([0-9a-f]{32}-\\d+)|([0-9a-f]{8}(-[0-9a-f]{4}){4}$)`
+	// ContainerRegexpStr defines the regexp used to match container IDs
+	// ([0-9a-f]{64}) is standard container id used pretty much everywhere
+	// ([0-9a-f]{32}-\d+) is container id used by AWS ECS
+	// ([0-9a-f]{8}(-[0-9a-f]{4}){4}$) is container id used by Garden
+	containerIDPattern = regexp.MustCompile(containerIDPatternStr)
 
 	cgroup = "/proc/%d/cgroup"