TN-026 — Establish Alertmanager Runtime Repository¶
| Field | Value |
|---|---|
| Status | Completed |
| Activity Type | Implementation |
| Record Type | Live |
| Project | Tomcat Monitoring |
| Phase | Monitoring Integration and Runtime Deployment |
| Activity Date | 2026-08-26 |
| Recorded Date | 2026-08-26 |
| Owner | Project owner |
| Working Mode | Write |
| Authorization Status | Approved |
| Approved By | Project owner |
| Approval Date | 2026-08-26 |
🎯 Objective¶
Membentuk source repository runtime Alertmanager generik berdasarkan ownership dan lifecycle contract TN-025 tanpa membangun image atau menjalankan runtime.
🌍 Background¶
TN-025 menetapkan repository generik baru alertmanager sebagai owner upstream
pin, image identity, build, smoke test, run, dan cleanup lifecycle. Repository
tomcat-monitoring tetap memiliki Alertmanager configuration, routing,
receiver reference, validation, Prometheus delivery, dan orchestration.
Project owner kemudian menyediakan repository kosong
/home/eddywiyatno/git/alertmanager dan mengotorisasi kelanjutan aktivitas.
Repository belum memiliki commit, source, atau perubahan pengguna. Scope
session dikonfirmasi hanya untuk source runtime dan static verification; pull,
build, component test, container, volume, cleanup, commit, dan push tetap
memerlukan authorization terpisah.
📚 Scope¶
Aktivitas ini mencakup:
- Menambahkan governance khusus repository runtime Alertmanager.
- Menetapkan project identity
alertmanagerversi source1.0.0. - Mem-pin upstream
quay.io/prometheus/alertmanager:v0.34.0. - Menambahkan minimal Containerfile yang mempertahankan official non-root user, entrypoint, binary, dan port contract.
- Menambahkan generic build, smoke-test, run, dan exact-container cleanup interfaces.
- Menambahkan README dan build-context exclusion untuk menjaga generic runtime boundary.
- Menjalankan static syntax, inventory, permission, whitespace, identity, dan sensitive-pattern verification.
- Memperbarui Engineering Journal dan current-state documentation sesuai hasil aktual.
Image pull, build, podman run, binary execution, component smoke test,
configuration project, receiver, secret, persistent resource, cleanup aktual,
commit, dan push tidak termasuk.
📋 Prerequisites¶
| Prerequisite | State | Evidence |
|---|---|---|
| Runtime ownership contract | Completed and accepted. | TN-025. |
| Repository target | Available and empty. | Git melaporkan No commits yet on main...origin/main [gone]; initial rg --files tidak menemukan source. |
| User changes | Tidak ada pada repository target. | Initial Git status tidak menampilkan tracked atau untracked file. |
| Upstream identity | Defined. | TN-025 dan official Prometheus Download menetapkan release 0.34.0. |
| Implementation authorization | Approved for source and static verification. | Project owner menyediakan repository dan meminta aktivitas dilanjutkan pada 2026-08-26. |
⚖️ Execution Decision¶
Source mengikuti pola lifecycle generik Prometheus dan Telegraf tanpa menyalin configuration integration. Containerfile hanya menambahkan OCI labels di atas official pinned image; official user dan entrypoint dipertahankan agar source tidak mengarang runtime behavior sebelum build verification.
run.sh mewajibkan named configuration dan data volumes yang sudah tersedia,
tidak membuat keduanya, tidak memuat receiver atau secret, dan tidak
memublikasikan port secara default. Optional UI publication hanya mengikat
loopback 127.0.0.1. clean.sh hanya menargetkan named container dan tidak
menghapus image, volume, atau data.
Keputusan tersebut menerapkan TN-025, TM-ADR-0001, dan repository ownership model yang kemudian dicatat secara retrospektif pada TM-ADR-0002.
📋 Implementation Plan¶
| Tahap | Rencana |
|---|---|
| Prepare the Runtime Repository Contract | Menambahkan governance, identity, upstream pin, exclusions, dan Containerfile minimal. |
| Implement the Lifecycle Interfaces | Menambahkan build, smoke-test, run, dan cleanup tanpa konfigurasi project atau persistent default. |
| Document the Runtime and Verification Boundary | Menjelaskan cara penggunaan dan batas klaim source, image, runtime, serta notification. |
| Apply Executable Modes and Run Static Validation | Menerapkan file mode serta memeriksa shell, metadata, inventory, secret pattern, dan whitespace. |
| Consolidate the Source-Level Handoff | Mencatat hasil source tanpa menyatakan image atau runtime telah diverifikasi. |
⚙️ Implementation¶
Repository alertmanager sekarang memiliki:
AGENTS.mduntuk generic runtime, authorization, verification, cleanup, dan secret governance;PROJECT,VERSION, danCONFIGuntuk identitylocalhost/alertmanager:1.0.0serta upstream pinv0.34.0;.containerignoreyang mengecualikan repository metadata dan common certificate, key, serta environment material;Containerfileminimal yang mempertahankan official runtime contract dan hanya menambahkan OCI labels;scripts/build.shdengan--pull=neverdan versioned image tags;scripts/test.shuntuk future Alertmanager version,amtoolversion, dan configured non-root user verification;scripts/run.shdengan explicit configuration/data volumes, internal network, no-host-port default, optional loopback publication, dan exact collision check;scripts/clean.shyang hanya menghapus named container dan tidak menyentuh image atau volumes; sertaREADME.mdyang membedakan static source, component build/test, configuration, persistent integration, dan external notification evidence.
Tidak ada alertmanager.yml, receiver, webhook URL, credential, certificate,
secret, data, automation deployment, atau runtime-generated artifact yang
ditambahkan.
Prepare the Runtime Repository Contract¶
Tambahkan governance, identity metadata, exact upstream pin,
.containerignore, dan Containerfile yang mempertahankan official runtime.
Expected Result
Repository memiliki identity yang jelas dan tidak membawa configuration atau secret milik project integration.
Actual Result: seluruh contract source tersedia sesuai inventory.
Evidence: AGENTS.md, PROJECT, VERSION, CONFIG,
.containerignore, dan Containerfile tersedia.
Implement the Lifecycle Interfaces¶
Tambahkan build.sh, test.sh, run.sh, dan clean.sh dengan target serta
cleanup yang dibatasi secara eksplisit.
Expected Result
Caller dapat membangun, menguji, menjalankan, dan membersihkan named container tanpa default persistent atau penghapusan volume.
Actual Result: keempat interface tersedia tanpa project configuration.
Evidence: source inventory dan targeted script review.
Document the Runtime and Verification Boundary¶
Tambahkan README yang membedakan source validation, image build/test, configuration integration, persistent runtime, dan external notification.
Expected Result
Pembaca mengetahui kemampuan yang tersedia dan hal yang belum diuji.
Actual Result: README memisahkan kelima verification layer tersebut.
Evidence: README review pada command record.
Apply Executable Modes and Run Static Validation¶
chmod 0755 scripts/build.sh scripts/test.sh scripts/run.sh scripts/clean.sh
bash -n CONFIG scripts/*.sh
git diff --check
Expected Result
Script ber-mode 0755; shell, metadata, inventory, secret pattern, dan
whitespace checks lulus.
Actual Result: chmod pertama gagal pada sandbox read-only; approved retry
berhasil dan seluruh static checks lulus.
Evidence: mode check, validator commands, dan Troubleshooting record.
Consolidate the Source-Level Handoff¶
Catat artifact serta verification boundary dan arahkan build/smoke test ke TN-027.
Expected Result
Source-level result dapat dibedakan dari image dan runtime yang belum diuji.
Actual Result: Outcome membatasi klaim pada source; TN-027 menjadi next verification activity.
Evidence: Verification, Outcome, Next Steps, dan Related Documentation.
🛠️ Troubleshooting¶
Initial chmod 0755 scripts/*.sh gagal untuk seluruh script dengan
Read-only file system karena repository baru belum termasuk writable sandbox
session. Tidak ada file content yang hilang atau berubah akibat kegagalan
tersebut.
Exact four-file chmod kemudian diulang setelah filesystem approval diberikan
dan berhasil. Final mode check membuktikan seluruh lifecycle script memiliki
mode 0755.
⚙️ Commands Executed¶
# Repository handoff discovery
git status --short --branch
rg --files
for path in /home/eddywiyatno/git/alertmanager/AGENTS.md /home/eddywiyatno/git/AGENTS.md /home/eddywiyatno/AGENTS.md /home/AGENTS.md; do if test -f "$path"; then printf '%s\n' "$path"; fi; done
# Runtime precedent review
sed -n '1,280p' /home/eddywiyatno/git/prometheus/entrypoint.sh
sed -n '1,280p' /home/eddywiyatno/git/prometheus/scripts/build.sh
sed -n '1,280p' /home/eddywiyatno/git/prometheus/scripts/test.sh
sed -n '1,280p' /home/eddywiyatno/git/prometheus/scripts/run.sh
sed -n '1,280p' /home/eddywiyatno/git/prometheus/scripts/clean.sh
sed -n '1,280p' /home/eddywiyatno/git/prometheus/.containerignore
sed -n '1,280p' /home/eddywiyatno/git/telegraf/entrypoint.sh
sed -n '1,280p' /home/eddywiyatno/git/telegraf/scripts/build.sh
sed -n '1,280p' /home/eddywiyatno/git/telegraf/scripts/test.sh
sed -n '1,280p' /home/eddywiyatno/git/telegraf/scripts/run.sh
sed -n '1,280p' /home/eddywiyatno/git/telegraf/scripts/clean.sh
sed -n '1,280p' /home/eddywiyatno/git/telegraf/.containerignore
# Source inventory review after approved patch application
git status --short --branch
rg --files | sort
stat -c '%a %n' scripts/*.sh
sed -n '1,260p' AGENTS.md
sed -n '1,220p' README.md
sed -n '1,220p' CONFIG
sed -n '1,220p' Containerfile
sed -n '1,280p' scripts/build.sh
sed -n '1,280p' scripts/test.sh
sed -n '1,320p' scripts/run.sh
sed -n '1,220p' scripts/clean.sh
# Initial executable-mode application; failed because sandbox mounted target read-only
chmod 0755 scripts/*.sh
# Approved retry outside the read-only sandbox
chmod 0755 scripts/build.sh scripts/test.sh scripts/run.sh scripts/clean.sh
# Static source verification
bash -n CONFIG scripts/*.sh
rg -n '[[:blank:]]+$' . --glob '!/.git/**'
rg -n 'BEGIN (RSA |EC |OPENSSH )?PRIVATE KE[Y]|bearer[_]token=|^[[:space:]]*passwor[d]=|https?://[^[:space:]/]+:[^[:space:]@]+@' . --glob '!/.git/**'
test "$(<PROJECT)" = alertmanager
test "$(<VERSION)" = 1.0.0
test "$(sed -n 's/^ALERTMANAGER_VERSION=//p' CONFIG)" = v0.34.0
test "$(sed -n 's/^BASE_IMAGE=//p' CONFIG)" = quay.io/prometheus/alertmanager:v0.34.0
test "$(stat -c '%a' scripts/build.sh)" = 755
test "$(stat -c '%a' scripts/test.sh)" = 755
test "$(stat -c '%a' scripts/run.sh)" = 755
test "$(stat -c '%a' scripts/clean.sh)" = 755
test -f AGENTS.md
test -f PROJECT
test -f VERSION
test -f CONFIG
test -f .containerignore
test -f Containerfile
test -f README.md
test -f scripts/build.sh
test -f scripts/test.sh
test -f scripts/run.sh
test -f scripts/clean.sh
git diff --check
git status --short --branch
# Handbook documentation verification
git diff --check
git status --short --branch
sed -n '1,320p' docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/TN-026-establish-alertmanager-runtime-repository.md
rg -n '^## ' docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/TN-026-establish-alertmanager-runtime-repository.md
rg -n 'TN-026|TN-026-establish-alertmanager' docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/.pages docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/index.md
test -f docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/TN-025-define-alertmanager-runtime-ownership-and-notification-integration-contract.md
test -f docs/projects/tomcat-monitoring/architecture/index.md
test -f docs/projects/tomcat-monitoring/development/index.md
test -f docs/projects/tomcat-monitoring/infrastructure/index.md
test -f docs/adr/tomcat-monitoring/adr-records/TM-ADR-0001.md
rg -n '[[:blank:]]+$' docs/projects/tomcat-monitoring/index.md docs/projects/tomcat-monitoring/architecture/index.md docs/projects/tomcat-monitoring/development/index.md docs/projects/tomcat-monitoring/infrastructure/index.md docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/.pages docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/index.md docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/TN-025-define-alertmanager-runtime-ownership-and-notification-integration-contract.md docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/TN-026-establish-alertmanager-runtime-repository.md
rg -n 'BEGIN (RSA |EC |OPENSSH )?PRIVATE KE[Y]|bearer[_]token=|^[[:space:]]*passwor[d]=|https?://[^[:space:]/]+:[^[:space:]@]+@' docs/projects/tomcat-monitoring/index.md docs/projects/tomcat-monitoring/architecture/index.md docs/projects/tomcat-monitoring/development/index.md docs/projects/tomcat-monitoring/infrastructure/index.md docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/.pages docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/index.md docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/TN-025-define-alertmanager-runtime-ownership-and-notification-integration-contract.md docs/projects/tomcat-monitoring/engineering-journal/monitoring-integration-and-runtime-deployment/TN-026-establish-alertmanager-runtime-repository.md
command -v mkdocs
Whitespace dan sensitive-pattern scans tidak menemukan match sehingga rg
mengembalikan exit code 1, sesuai expected empty result. git diff --check
tidak menemukan error pada tracked diff; seluruh source masih untracked karena
repository belum memiliki initial commit. Inventory dan explicit content scans
melengkapi verification untuk untracked files.
✅ Verification¶
| Method | Expected Result | Actual Result | Evidence |
|---|---|---|---|
| Shell syntax | CONFIG dan empat lifecycle scripts dapat diparse Bash. |
Passed. | bash -n CONFIG scripts/*.sh exit 0. |
| Source inventory | Governance, identity, build context, Containerfile, README, dan empat scripts tersedia. | Passed. | Eleven exact test -f checks lulus. |
| Identity and upstream pin | Project alertmanager, source version 1.0.0, dan exact upstream v0.34.0 konsisten. |
Passed. | Explicit content assertions terhadap PROJECT, VERSION, dan CONFIG lulus. |
| Executable modes | Seluruh lifecycle scripts memiliki mode 0755. |
Passed after approved retry. | Empat exact stat assertions lulus. |
| Generic boundary | Tidak ada configuration project, receiver, secret material, persistent data, atau host-port default. | Passed untuk source inspection. | Targeted source review, .containerignore, README, Containerfile, dan scripts. |
| Whitespace and sensitive patterns | Tidak ada trailing whitespace atau material sensitif. | Passed. | Kedua targeted scans tidak menemukan match; git diff --check tidak menemukan error. |
| Documentation structure and navigation | TN-026, phase index, .pages, relative targets, dan current-state handoff konsisten. |
Passed. | Heading inventory, navigation search, exact target checks, scans, dan handbook git diff --check lulus. |
| MkDocs render | Site dapat dirender tanpa error. | Not verified. | mkdocs executable tidak tersedia dan dependency tidak dipasang. |
| Image build and component smoke test | Image dibangun dari exact upstream dan binary, amtool, serta non-root runtime terbukti. |
Not verified; di luar authorization TN-026. | Menjadi mandatory scope Technical Note build berikutnya. |
| Alertmanager configuration and integration | Route, receiver, webhook, firing/resolved, persistence, dan Prometheus delivery lulus. | Not verified; di luar scope TN-026. | Tetap menjadi activity integration setelah runtime image terverifikasi. |
🧾 Outcome¶
Source repository Alertmanager generik telah terbentuk dan lulus static syntax,
inventory, identity, executable-mode, whitespace, sensitive-pattern, serta
boundary review. Repository memiliki exact upstream pin dan lifecycle
interfaces tanpa mengambil alih configuration atau external integration milik
tomcat-monitoring.
Tidak ada image yang dipull atau dibangun, binary atau container yang dijalankan, network atau volume yang dibuat, resource yang dibersihkan, maupun Git commit atau push yang dilakukan. Karena itu image build, official runtime user, binary compatibility, data permission, readiness, dan cleanup behavior belum dapat dinyatakan terverifikasi.
⏭️ Next Steps¶
Technical Note berikutnya dapat membangun dan smoke-test image
localhost/alertmanager:1.0.0 setelah exact image, pull policy, disposable
resource, expected result, dan cleanup authorization disetujui. Configuration
integration tidak dimulai sebelum runtime image lulus component verification.