zino/mtail-registry-metrics
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zino
2025-08-13 16:01:46 +02:00
parent 52d03d1d96
commit 959e75e349
1 changed files with 23 additions and 23 deletions
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46
progs/registry.mtail
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@@ -1,12 +1,12 @@
# Parses JSON access logs from NGINX fronting a Docker Registry.
# Emits Prometheus counters for pull/push bytes and seconds, plus request counts.
# -------- Metrics (labels are space-separated, no commas)
counter registry_requests_total by method path_class status repo user node
counter registry_pull_blob_bytes_total by repo user node
counter registry_pull_blob_seconds_total by repo user node
counter registry_push_upload_bytes_total by repo user node
counter registry_push_upload_seconds_total by repo user node
# -------- Metrics
counter registry_requests_total by method, path_class, status, repo, user, node
counter registry_pull_blob_bytes_total by repo, user, node
counter registry_pull_blob_seconds_total by repo, user, node
counter registry_push_upload_bytes_total by repo, user, node
counter registry_push_upload_seconds_total by repo, user, node
# -------- Field extraction (order-independent)
/"method":"([A-Z]+)"/ {
@@ -23,7 +23,7 @@ counter registry_push_upload_seconds_total by repo user node
}
/"status":([0-9]{3})/ {
status = $1
status_s = sprintf("%d", status) # use string label later
status_s = sprintf("%d", status)
}
/"request_time":([0-9.]+)/ {
request_time = $1
@@ -46,11 +46,11 @@ counter registry_push_upload_seconds_total by repo user node
repo = $1
}
# Defaults per line
# Defaults per line (expression-style conditionals)
/$/ {
if repo == "" { repo = "unknown" }
if user == "" { user = "anonymous" }
if node == "" { node = "unknown" }
repo == "" { repo = "unknown" }
user == "" { user = "anonymous" }
node == "" { node = "unknown" }
}
# Helper: parse upstream_range "a-b" => bytes = b+1
@@ -62,40 +62,40 @@ counter registry_push_upload_seconds_total by repo user node
# Downloaded blob bytes/time: GET /v2/<repo>/blobs/sha256:...
/"method":"GET".*"\/v2\/.+\/blobs\/sha256:[a-f0-9]+"/ {
registry_pull_blob_bytes_total[repo=repo user=user node=node] += body_bytes_sent
registry_pull_blob_seconds_total[repo=repo user=user node=node] += request_time
registry_requests_total[method=method path_class="pull_blob" status=status_s repo=repo user=user node=node]++
registry_pull_blob_bytes_total[repo=repo, user=user, node=node] += body_bytes_sent
registry_pull_blob_seconds_total[repo=repo, user=user, node=node] += request_time
registry_requests_total[method=method, path_class="pull_blob", status=status_s, repo=repo, user=user, node=node]++
}
# Upload data transfer: PATCH /v2/<repo>/blobs/uploads/<uuid> 202
/"method":"PATCH".*"\/v2\/.+\/blobs\/uploads\/[a-f0-9-]+"/ {
if uploaded_bytes > 0 {
registry_push_upload_bytes_total[repo=repo user=user node=node] += uploaded_bytes
uploaded_bytes > 0 {
registry_push_upload_bytes_total[repo=repo, user=user, node=node] += uploaded_bytes
}
registry_push_upload_seconds_total[repo=repo user=user node=node] += request_time
registry_requests_total[method=method path_class="push_upload" status=status_s repo=repo user=user node=node]++
registry_push_upload_seconds_total[repo=repo, user=user, node=node] += request_time
registry_requests_total[method=method, path_class="push_upload", status=status_s, repo=repo, user=user, node=node]++
uploaded_bytes = 0
}
# Upload session start/end (bookkeeping)
/"method":"POST".*"\/v2\/.+\/blobs\/uploads\/"/ {
registry_requests_total[method=method path_class="push_start" status=status_s repo=repo user=user node=node]++
registry_requests_total[method=method, path_class="push_start", status=status_s, repo=repo, user=user, node=node]++
}
/"method":"PUT".*"\/v2\/.+\/blobs\/uploads\/[a-f0-9-]+"/ {
registry_requests_total[method=method path_class="push_commit" status=status_s repo=repo user=user node=node]++
registry_requests_total[method=method, path_class="push_commit", status=status_s, repo=repo, user=user, node=node]++
}
# Manifest pulls
/"method":"GET".*"\/v2\/.+\/manifests\/[^"]+"/ {
registry_requests_total[method=method path_class="pull_manifest" status=status_s repo=repo user=user node=node]++
registry_requests_total[method=method, path_class="pull_manifest", status=status_s, repo=repo, user=user, node=node]++
}
# Manifest writes
/"method":"PUT".*"\/v2\/.+\/manifests\/[^"]+"/ {
registry_requests_total[method=method path_class="push_manifest" status=status_s repo=repo user=user node=node]++
registry_requests_total[method=method, path_class="push_manifest", status=status_s, repo=repo, user=user, node=node]++
}
# Root auth probe
/"path":"\/v2\/"/ {
registry_requests_total[method=method path_class="v2_root" status=status_s repo="none" user=user node=node]++
registry_requests_total[method=method, path_class="v2_root", status=status_s, repo="none", user=user, node=node]++
}