104 lines
2.9 KiB
Plaintext
104 lines
2.9 KiB
Plaintext
# Docker Registry via NGINX JSON logs -> Prometheus metrics (mtail)
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# -------- Metrics (comma-separated labels)
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counter registry_requests_total by method, path_class, status, repo, user, node
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counter registry_pull_blob_bytes_total by repo, user, node
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counter registry_pull_blob_seconds_total by repo, user, node
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counter registry_push_upload_bytes_total by repo, user, node
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counter registry_push_upload_seconds_total by repo, user, node
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# -------- Field extraction (order-independent)
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# Strings
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/"method":"([A-Z]+)"/ {
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method = $1
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}
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/"path":"([^"]+)"/ {
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path = $1
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}
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/"remote_address":"([^"]*)"/ {
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node = $1
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}
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/"remote_user":"([^"]*)"/ {
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user = $1
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}
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/"docker_upload_uuid":"([^"]*)"/ {
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upload_uuid = $1
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}
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/"docker_content_digest":"([^"]*)"/ {
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digest = $1
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}
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/"upstream_range":"([^"]*)"/ {
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up_range = $1
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}
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# Numbers
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/"status":([0-9]{3})/ {
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status = $1
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status_s = string(status) # label must be string
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}
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/"request_time":([0-9.]+)/ {
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request_time = $1
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}
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/"body_bytes_sent":([0-9]+)/ {
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body_bytes_sent = $1
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}
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# Repo (supports namespaces) — capture everything after /v2/ up to common sections
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/"path":"\/v2\/(.+?)\/(blobs|manifests|tags|_catalog)/ {
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repo = $1
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}
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# Defaults per line (expression-style conditionals)
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/$/ {
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repo == "" { repo = "unknown" }
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user == "" { user = "anonymous" }
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node == "" { node = "unknown" }
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}
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# Parse upstream_range "a-b" => bytes = b+1 (exact uploaded bytes)
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/"upstream_range":"([0-9]+)-([0-9]+)"/ {
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uploaded_bytes = int($2) + 1
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}
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# -------- Classify & emit
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# PULL: GET /v2/<repo>/blobs/sha256:<digest>
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/"method":"GET".*"\/v2\/.+\/blobs\/sha256:[a-f0-9]+"/ {
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registry_pull_blob_bytes_total[repo][user][node] += body_bytes_sent
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registry_pull_blob_seconds_total[repo][user][node] += request_time
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registry_requests_total[method]["pull_blob"][status_s][repo][user][node]++
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}
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# PUSH upload (data transfer): PATCH /v2/<repo>/blobs/uploads/<uuid> 202
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/"method":"PATCH".*"\/v2\/.+\/blobs\/uploads\/[a-f0-9-]+"/ {
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uploaded_bytes > 0 {
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registry_push_upload_bytes_total[repo][user][node] += uploaded_bytes
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}
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registry_push_upload_seconds_total[repo][user][node] += request_time
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registry_requests_total[method]["push_upload"][status_s][repo][user][node]++
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uploaded_bytes = 0
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}
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# PUSH start/end bookkeeping
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/"method":"POST".*"\/v2\/.+\/blobs\/uploads\/"/ {
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registry_requests_total[method]["push_start"][status_s][repo][user][node]++
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}
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/"method":"PUT".*"\/v2\/.+\/blobs\/uploads\/[a-f0-9-]+"/ {
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registry_requests_total[method]["push_commit"][status_s][repo][user][node]++
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}
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# Manifest pulls
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/"method":"GET".*"\/v2\/.+\/manifests\/[^"]+"/ {
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registry_requests_total[method]["pull_manifest"][status_s][repo][user][node]++
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}
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# Manifest writes
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/"method":"PUT".*"\/v2\/.+\/manifests\/[^"]+"/ {
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registry_requests_total[method]["push_manifest"][status_s][repo][user][node]++
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}
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# /v2/ probe (auth challenge etc.)
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/"path":"\/v2\/"/ {
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registry_requests_total[method]["v2_root"][status_s]["none"][user][node]++
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}
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