4 Commits

Author SHA1 Message Date
mdella cc9dcebd7e Merge branch 'feat/registry-auth' into 'main'
feat: registry credential from the manifest (no hand docker login) + readable pull errors

See merge request tikali/applications/monky/monky-deployd!12
2026-09-08 09:54:48 -07:00
mdella b25c6b3b8b feat: pull private images without a hand docker login; surface the pull error
Design merged first: monky-design-docs !225 (doc 24 §4a). Pairs with monky-tenancy!40, which
copies the estate-wide read-only Harbor robot into each environment's own prefix and marks the
manifest entry `use: registry-auth`.

- That entry is not an env var (it would otherwise land in .env and therefore in every container's
  environment). The agent parses it — JSON, or `username:password` with the new `registry_host` —
  and writes `<state_dir>/docker/config.json` 0600 in a directory it owns, with an explicit
  DOCKER_CONFIG pointing the docker CLI at it. The unit runs as monky-deployd, so a `docker login`
  by a human or by root is invisible to the agent: that is what made env-dev-01 look like it had no
  credential at all after the operator had just logged in.
- `compose pull` failures now carry the registry's own message ("no basic auth credentials",
  "manifest unknown", DNS) into the journal and the report instead of `rc=1`.
- Tests: both credential shapes, the refusals, 0600/0700 modes, idempotent rewrite, and that the
  runner never silently falls back to a human's $HOME.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KLB7jieMNRkTsJ2epr4Ds1
2026-09-08 15:45:22 +00:00
monky-deployd-merger 35949a9246 Merge branch 'fix/reuse-lease-token' into 'main'
fix(agent): reuse a valid lease token; rate-limited lease no longer blocks a deploy; 0.1.6

See merge request tikali/applications/monky/monky-deployd!11
2026-09-07 20:27:03 +00:00
mdella a30014a096 fix(agent): reuse a valid lease token across applies; a rate-limited lease no longer blocks a deploy; 0.1.6
Every apply requested a new lease, so a failing deploy retried by the 60 s
timer burned tenancy's 5-leases-per-hour budget and then failed on
LEASE_RATE_LIMITED forever (env-qa-02 pilot). Now: reuse a lease-derived
token while lookup-self says it is valid; swap the bootstrap token for a
lease once; if tenancy rate-limits the lease while a working token exists,
apply with it and defer the swap.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KLB7jieMNRkTsJ2epr4Ds1
2026-09-07 20:25:38 +00:00
14 changed files with 273 additions and 23 deletions
+20
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@@ -1,6 +1,26 @@
<!-- xlate:verbatim-fences -->
# Changelog
## 0.1.7 — registry credential + a pull error you can read (2026-09-08)
- **No hand `docker login` on a new box** (monky-design-docs !225, doc 24 §4a). A manifest entry marked
`use: registry-auth` is the Harbor pull credential, not an env var: it is written to
`<state_dir>/docker/config.json` (0600, in a directory the agent owns) and the docker CLI is pointed at it
with an explicit **`DOCKER_CONFIG`**. That last part is the trap — the unit runs as `monky-deployd`, so a
`docker login` by a human or by root is invisible to the agent and looks exactly like no credential at all
(env-dev-01, 2026-09-08). Both seeded shapes are accepted: a JSON object, or `username:password` with the
registry from the new `registry_host` config.
- **`compose pull` failures carry the registry's own message** instead of `rc=1`. "no basic auth
credentials", "manifest unknown" and DNS failures now reach the journal and the report to tenancy.
## 0.1.6 — 2026-09-07
- **A valid lease token is reused across applies.** Every apply requested a new lease, so a failing deploy
retried by the 60 s timer burned tenancy's 5-leases-per-hour budget and then failed on
`LEASE_RATE_LIMITED` forever (env-qa-02 pilot). Now: reuse a lease-derived token while `lookup-self`
says it is valid; swap the bootstrap token for a lease once; and if tenancy rate-limits the lease while a
working token exists, apply with it and defer the swap instead of failing the deploy.
## 0.1.5 — 2026-09-07
- **`tenancy.port` defaults to 443 everywhere** — the ansible role default and the `TenancyCfg` default now
+2 -2
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@@ -23,9 +23,9 @@ you the enrolment JWT, a one-time **bootstrap deploy grant** and the read-only *
```sh
T=<deploy token> # read-only GitLab deploy token (read_package_registry); the kit carries it
curl -sSf -H "DEPLOY-TOKEN: $T" https://scm.tikali.ai/api/v4/projects/69/packages/generic/monky-deployd/0.1.5/install.sh \
curl -sSf -H "DEPLOY-TOKEN: $T" https://scm.tikali.ai/api/v4/projects/69/packages/generic/monky-deployd/0.1.6/install.sh \
| sudo bash -s -- --env env-qa-02 --site cbs --token "$T" --bootstrap-file bootstrap.jwt --enrol-jwt ./monky-host.env-qa-02.jwt
# [--transport sdk|proxy|system] [--version 0.1.5] [--docker-data-root /home/docker-data] [--laptop] [--bao-ca openbao-ca.pem] [--source gitlab|gitea]
# [--transport sdk|proxy|system] [--version 0.1.6] [--docker-data-root /home/docker-data] [--laptop] [--bao-ca openbao-ca.pem] [--source gitlab|gitea]
```
`install.sh` installs `ziti-edge-tunnel` (OpenZiti `jammy` suite) and `docker-compose-plugin` if
+1 -1
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@@ -16,7 +16,7 @@ template → optional openbao-ca PEM → optional `monky-deployd-proxy.service`
| var | note |
|---|---|
| `monky_deployd_version` | pinned release, e.g. `0.1.5` |
| `monky_deployd_version` | pinned release, e.g. `0.1.6` |
| `monky_deployd_download_token` | **vaulted**: GitLab deploy token, scope `read_package_registry` only (revocable) — the registry is private; seeded in OpenBao at `monky/monky-tenancy/deployd-download` key `token` (path/key are the operator's choice). Empty = no header (only works with the Gitea `base_url`) |
| `monky_deployd_env_id` / `_site` / `_transport` | per host (`env-dev-06`, `cbs`, `sdk`) |
| `monky_deployd_bootstrap_grant` | tenancy-minted deploy grant (1 h) — `ansible-vault` or a lookup at play time; empty keeps the existing token |
@@ -1,7 +1,7 @@
---
# monky_deployd — install and configure the Monky backend pull agent (MONKY-ADR-0028 §D).
# Copy this role into osg1-07 (roles/monky_deployd) and roll to env-dev-06..09 after the pilot.
monky_deployd_version: "0.1.5"
monky_deployd_version: "0.1.6"
monky_deployd_deb: "monky-deployd_{{ monky_deployd_version }}_amd64.deb"
# PRIMARY download = the GitLab project's generic package registry on scm.tikali.ai. Inside the estate
# gitea.cbs.tikali.net is split-horizon to jump1's RED EIP (10.10.0.175, no HTTP ingress), so backend
+5 -1
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@@ -1,4 +1,4 @@
# /etc/monky-deployd/config.yaml — monky-deployd v0.1.5 (MONKY-ADR-0028 §D)
# /etc/monky-deployd/config.yaml — monky-deployd v0.1.6 (MONKY-ADR-0028 §D)
# Written by packaging/install.sh (or the ansible role monky_deployd). YAML *subset*: maps, scalars,
# simple lists, comments. Keys not listed here are a config error.
@@ -44,3 +44,7 @@ laptop_mode: false # true: offline exits 0 quietly; run withou
# compose_project: monky-env-qa-02 # docker compose project name
# docker_bin: docker
# log_level: INFO
# The registry the bundle pulls from. Used only when the seeded pull credential is a bare
# `username:password` (a JSON credential names its own registry). doc 24 §4a.
registry_host: harbor.tikali.net
+1 -1
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@@ -4,4 +4,4 @@ Dials monky-tenancy over the mesh with the box's host identity, fetches the rend
leases a deploy grant, logs in to OpenBao, reads its own secrets, runs `docker compose`,
reports. Stdlib only; the optional `openziti` SDK is the `sdk` transport."""
__version__ = "0.1.5"
__version__ = "0.1.7"
+55 -5
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@@ -24,6 +24,7 @@ from pathlib import Path
from monky_deployd import __version__
from monky_deployd import bundle as bundlemod
from monky_deployd import registry as registrymod
from monky_deployd import state as statemod
from monky_deployd.bao import BaoClient, BaoError, BaoToken, ManifestPathError, kv_data_path
from monky_deployd.bundle import Bundle, BundleError
@@ -86,7 +87,7 @@ class Agent:
def __init__(self, cfg: Config, *, prune: bool = False, docker: Docker | None = None):
self.cfg = cfg
self.prune = prune
self.docker = docker or Docker(cfg.docker_bin)
self.docker = docker or Docker(cfg.docker_bin, docker_config=str(cfg.docker_config_dir))
self.transport = build(cfg)
self.tenancy_http = HttpClient(
self.transport, cfg.tenancy.scheme, cfg.tenancy.host, cfg.tenancy.port, timeout=cfg.tenancy.timeout_s
@@ -274,13 +275,29 @@ class Agent:
if hdr_sha and hdr_sha != b.sha:
log.warning("bundle header sha %s disagrees with content %s", _short(hdr_sha), _short(b.sha))
self._refusal_checks(b)
# secrets: lease -> login -> reads (values never logged; names only)
# secrets: lease -> login -> reads (values never logged; names only). An entry marked
# `use: registry-auth` is NOT an env var — it is the pull credential, written to the
# agent's own Docker config instead of `.env` (doc 24 §4a).
entries = b.manifest.get("entries", [])
registry_entries = [e for e in entries if e.get("use") == registrymod.USE]
env_entries = [e for e in entries if e.get("use") != registrymod.USE]
if entries:
token = self._lease_login("apply")
for e in entries:
token = self._token_for_apply()
for e in env_entries:
self._values[e["var"]] = self.bao.kv_read(token, e["path"], cfg.env_id, e.get("version"))
log.info("read %d secret(s): %s", len(entries), ", ".join(sorted(self._values)))
for e in registry_entries:
raw = self.bao.kv_read(token, e["path"], cfg.env_id, e.get("version"))
try:
auth = registrymod.parse(raw, default_registry=cfg.registry_host)
registrymod.write_docker_config(cfg.docker_config_dir, auth)
except registrymod.RegistryAuthError as exc:
log.warning("registry credential unusable (%s) — private images will not pull", exc)
log.info(
"read %d secret(s): %s%s",
len(entries),
", ".join(sorted(self._values)),
" (+ registry credential)" if registry_entries else "",
)
env_text = bundlemod.render_env(b.env_template, self._values)
leftover = bundlemod.referenced_vars(env_text)
if leftover:
@@ -288,7 +305,17 @@ class Agent:
release = self._promote(self._stage(b, env_text))
compose = self._compose()
log.info("compose pull")
try:
compose.pull()
except ComposeError as exc:
# the registry's own message is the diagnosis ("no basic auth credentials", "manifest
# unknown", a DNS failure). Swallowing it behind `rc=1` cost an SSH hunt on env-dev-01.
detail = " | ".join(line.strip() for line in (exc.output or "").splitlines() if line.strip())[-600:]
self.state.last_result = "failed"
self.state.last_error = f"compose pull failed: {detail or exc}"
log.error("compose pull failed (rc=%s): %s", exc.rc, detail or "(no output)")
self._report("failed", b.sha, detail=f"compose pull: {detail or exc}"[:900])
return EX_FAIL
log.info("compose up -d --remove-orphans")
compose.up()
ok, containers = compose.wait_healthy(cfg.healthy_timeout_s)
@@ -392,6 +419,29 @@ class Agent:
if old and old != token:
self.bao.revoke_self(old)
def _token_for_apply(self) -> str:
"""The OpenBao token to read this bundle's secrets with. A lease-derived token that is
still valid is REUSED (a lease per apply burned tenancy's 5/h budget on every retry —
env-qa-02 pilot, 2026-09-07); the bootstrap token is swapped for a lease once; and if
tenancy rate-limits the lease while we hold a working token, apply with what we have
and swap later rather than fail the deploy."""
cfg = self.cfg
st = self.state.token
if self.token and st is not None and st.source == "lease":
try:
info = self.bao.lookup_self(self.token)
if int(info.get("ttl") or 0) > cfg.bao.renew_below_s:
return self.token
except BaoError as exc:
log.info("lease token no longer valid (%s); re-leasing", exc)
try:
return self._lease_login("apply")
except RateLimited as exc:
if self.token:
log.warning("lease rate-limited (%s); applying with the current token, swap deferred", exc)
return self.token
raise
def _lease_login(self, reason: str) -> str:
assert self.tenancy is not None
lease = self.tenancy.lease(reason)
+12 -2
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@@ -41,9 +41,13 @@ class Container:
class Docker:
def __init__(self, docker_bin: str = "docker", timeout_s: int = 600):
def __init__(self, docker_bin: str = "docker", timeout_s: int = 600, docker_config: str | None = None):
self.bin = docker_bin
self.timeout_s = timeout_s
# doc 24 §4a: registry credentials live in a directory the AGENT owns, named explicitly
# rather than inherited from $HOME. The unit runs as `monky-deployd`, so a `docker login`
# by a human or by root is invisible here — which is exactly what cost env-dev-01 an hour.
self.docker_config = docker_config
def available(self) -> bool:
return shutil.which(self.bin) is not None
@@ -59,7 +63,7 @@ class Docker:
capture_output=True,
text=True,
timeout=timeout or self.timeout_s,
env={**os.environ, "COMPOSE_INTERACTIVE_NO_CLI": "1"},
env=self._env(),
)
except FileNotFoundError as exc:
raise ComposeError(what, 127, f"{self.bin} not found") from exc
@@ -70,6 +74,12 @@ class Docker:
raise ComposeError(what, p.returncode, out.strip())
return out
def _env(self) -> dict:
env = {**os.environ, "COMPOSE_INTERACTIVE_NO_CLI": "1"}
if self.docker_config:
env["DOCKER_CONFIG"] = self.docker_config
return env
# -- facts ------------------------------------------------------------------------------------
def version(self) -> str | None:
try:
+10
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@@ -175,6 +175,9 @@ class Config:
healthy_timeout_s: int = 300
compose_project: str = ""
docker_bin: str = "docker"
# doc 24 §4a: the registry the bundle pulls from, used when the seeded credential is a bare
# `username:password` (a JSON credential names its own registry).
registry_host: str = "harbor.tikali.net"
log_level: str = "INFO"
path: str = DEFAULT_CONFIG_PATH
@@ -191,6 +194,13 @@ class Config:
def lock_path(self) -> Path:
return Path(self.state_dir) / "lock"
@property
def docker_config_dir(self) -> Path:
"""Where the agent keeps its OWN registry credentials (`DOCKER_CONFIG`). Not `$HOME`: the
unit runs as `monky-deployd`, and a human's or root's `docker login` must not be what the
agent depends on (doc 24 §4a)."""
return Path(self.state_dir) / "docker"
@property
def is_prod(self) -> bool:
if self.prod is not None:
+80
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@@ -0,0 +1,80 @@
"""The registry credential (monky-design-docs doc 24 §4a).
The bundle's manifest carries one entry marked `use: registry-auth` — the estate-wide read-only
Harbor robot, copied by monky-tenancy into this environment's own prefix so the agent can read it
with the OpenBao policy it already has. It is NOT an env var (an entry in `.env` would put the
registry password into every container's environment), so it never reaches the compose file: it is
written to a Docker config **the agent owns**, and `DOCKER_CONFIG` points the docker CLI at it.
That last part is the whole point. The unit runs as `monky-deployd`, whose home is the state dir,
so a `docker login` performed by a human or by root is invisible to it the failure looks exactly
like "no credentials at all" (env-dev-01, 2026-09-08).
Accepted shapes for the secret's value, because the seeded robot has been written both ways:
* a JSON object: `{"registry": , "username": , "password": }`
* a `username:password` string, with the registry taken from `registry_host` config
"""
from __future__ import annotations
import base64
import json
import logging
from dataclasses import dataclass
from pathlib import Path
log = logging.getLogger("monky-deployd.registry")
USE = "registry-auth"
class RegistryAuthError(Exception):
pass
@dataclass
class RegistryAuth:
registry: str
username: str
password: str
def docker_config(self) -> dict:
token = base64.b64encode(f"{self.username}:{self.password}".encode()).decode()
return {"auths": {self.registry: {"auth": token}}}
def parse(value: str, *, default_registry: str) -> RegistryAuth:
"""`value` is whatever the KV entry held; never logged, never echoed."""
text = (value or "").strip()
if not text:
raise RegistryAuthError("empty registry credential")
if text.startswith("{"):
try:
data = json.loads(text)
except json.JSONDecodeError as exc:
raise RegistryAuthError("registry credential is not valid JSON") from exc
user, pw = data.get("username"), data.get("password")
registry = data.get("registry") or default_registry
if not user or not pw:
raise RegistryAuthError("registry credential JSON needs username + password")
return RegistryAuth(registry=str(registry), username=str(user), password=str(pw))
if ":" not in text:
raise RegistryAuthError("registry credential is neither JSON nor username:password")
user, _, pw = text.partition(":")
if not default_registry:
raise RegistryAuthError("username:password credential needs a configured registry host")
return RegistryAuth(registry=default_registry, username=user, password=pw)
def write_docker_config(dir_path: Path, auth: RegistryAuth) -> Path:
"""0600 `config.json` in a directory the agent owns; DOCKER_CONFIG points the CLI at it."""
dir_path = Path(dir_path)
dir_path.mkdir(parents=True, exist_ok=True)
dir_path.chmod(0o700)
target = dir_path / "config.json"
tmp = dir_path / "config.json.tmp"
tmp.write_text(json.dumps(auth.docker_config(), indent=2) + "\n")
tmp.chmod(0o600)
tmp.replace(target)
log.info("registry credential in place for %s (%s)", auth.registry, auth.username)
return target
+3 -3
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@@ -3,9 +3,9 @@
#
# T=<read-only GitLab deploy token, scope read_package_registry> # from the install kit / OpenBao
# curl -sSf -H "DEPLOY-TOKEN: $T" \
# https://scm.tikali.ai/api/v4/projects/69/packages/generic/monky-deployd/0.1.5/install.sh \
# https://scm.tikali.ai/api/v4/projects/69/packages/generic/monky-deployd/0.1.6/install.sh \
# | sudo bash -s -- --env env-qa-02 --site cbs --token "$T" --bootstrap-file bootstrap.jwt \
# [--transport sdk|proxy|system] [--version 0.1.5] [--enrol-jwt /path/monky-host.env-qa-02.jwt] \
# [--transport sdk|proxy|system] [--version 0.1.6] [--enrol-jwt /path/monky-host.env-qa-02.jwt] \
# [--laptop] [--source gitlab|gitea] [--docker-data-root /home/docker-data]
#
# --token / MONKY_DEPLOYD_TOKEN: the GitLab project is PRIVATE (its parent groups are private, so it
@@ -29,7 +29,7 @@
set -euo pipefail
umask 077
DEFAULT_VERSION="0.1.5"
DEFAULT_VERSION="0.1.6"
# Download source. PRIMARY is the GitLab project's generic package registry on scm.tikali.ai: inside
# the estate gitea.cbs.tikali.net is split-horizon to jump1's RED EIP (10.10.0.175), which has no HTTP
# ingress, so backend boxes cannot reach the Gitea mirror (cbs/iac#102); scm.tikali.ai they can. The
+1 -1
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@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
[project]
name = "monky-deployd"
version = "0.1.5"
version = "0.1.7"
description = "Monky backend pull agent: checkin -> bundle -> lease -> OpenBao -> docker compose -> report, over the ziti mesh (MONKY-ADR-0028)"
readme = "README.md"
requires-python = ">=3.12"
+28 -5
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@@ -107,7 +107,7 @@ def test_rollback_refused_unless_allowed(bootstrapped, tenancy, fake_docker):
tenancy.set_files(first)
assert tick(cfg) == EX_FAIL
assert tenancy.reports[-1]["result"] == "failed" and "ROLLBACK_REFUSED" in tenancy.reports[-1]["detail"]
assert len(tenancy.leases) == 2 # a refused bundle never leases
assert len(tenancy.leases) == 1 # a refused bundle never leases; the 2nd apply reused the lease token
tenancy.set_files(make_files(meta={"agent": {"allow_rollback": True}}))
assert tick(cfg) == EX_OK
@@ -246,10 +246,9 @@ def test_legacy_approle_lease_is_refused_loudly(bootstrapped, tenancy, fake_dock
assert "compose up" not in fake_docker.subcommands()
def test_lease_rate_limited_is_temporary(bootstrapped, tenancy, fake_docker):
cfg = bootstrapped
tenancy.lease_limit = 0
assert tick(cfg) == EX_TEMPFAIL
# (test_lease_rate_limited_is_temporary was retired in 0.1.6: a rate-limited lease is only a
# temporary failure when NO working token exists; with one, the agent applies and defers the swap —
# see test_rate_limited_lease_does_not_block_an_apply_when_a_token_exists.)
def test_unhealthy_after_up_reports_failed_with_compose_logs(bootstrapped, tenancy, fake_docker):
@@ -320,3 +319,27 @@ def test_write_private_mode(tmp_path):
p = tmp_path / "d" / "f"
statemod.write_private(p, b"x")
assert oct(p.stat().st_mode & 0o777) == "0o600" and not any(n.startswith(".f.") for n in os.listdir(p.parent))
def test_second_apply_reuses_the_lease_token(bootstrapped, tenancy, bao, fake_docker):
"""A valid lease-derived token is reused: a new bundle does NOT lease again (5/h budget —
env-qa-02 pilot: a retried deploy re-leased every 60 s and hit LEASE_RATE_LIMITED forever)."""
cfg = bootstrapped
assert tick(cfg) == EX_OK
assert len(tenancy.leases) == 1
tenancy.set_files(make_files(manifest=make_manifest(versions={"gemini_api_key": 1})))
assert tick(cfg) == EX_OK
assert len(tenancy.leases) == 1 # reused
st = statemod.load(cfg.state_path, ENV)
assert st.applied_sha == tenancy.desired_sha and st.token.source == "lease"
def test_rate_limited_lease_does_not_block_an_apply_when_a_token_exists(bootstrapped, tenancy, bao, fake_docker):
"""tenancy 429 on lease while the bootstrap token still works → apply with it, swap deferred."""
cfg = bootstrapped
tenancy.lease_limit = 0
assert tick(cfg) == EX_OK
assert tenancy.leases == []
st = statemod.load(cfg.state_path, ENV)
assert st.applied_sha == tenancy.desired_sha and st.token.source == "bootstrap"
assert tenancy.reports[-1]["result"] == "applied"
+53
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@@ -0,0 +1,53 @@
"""The registry credential (doc 24 §4a): parsed from either seeded shape, written to a Docker
config the AGENT owns, never an env var, never logged."""
from __future__ import annotations
import base64
import json
import pytest
from monky_deployd import registry as registrymod
def test_parses_json_and_user_colon_password():
a = registrymod.parse(
json.dumps({"registry": "harbor.tikali.net", "username": "robot$pull", "password": "p4ss"}),
default_registry="ignored.example",
)
assert (a.registry, a.username, a.password) == ("harbor.tikali.net", "robot$pull", "p4ss")
b = registrymod.parse("robot$pull:p4ss", default_registry="harbor.tikali.net")
assert (b.registry, b.username, b.password) == ("harbor.tikali.net", "robot$pull", "p4ss")
# a password containing a colon survives (partition on the FIRST one)
c = registrymod.parse("robot$pull:p4:ss", default_registry="h")
assert c.password == "p4:ss"
@pytest.mark.parametrize("bad", ["", " ", "no-colon-here", '{"username": "u"}', "{not json"])
def test_refuses_what_it_cannot_use(bad):
with pytest.raises(registrymod.RegistryAuthError):
registrymod.parse(bad, default_registry="harbor.tikali.net")
def test_docker_config_is_written_0600_in_a_directory_the_agent_owns(tmp_path):
auth = registrymod.parse("robot$pull:p4ss", default_registry="harbor.tikali.net")
target = registrymod.write_docker_config(tmp_path / "docker", auth)
assert target.exists()
assert oct(target.stat().st_mode)[-3:] == "600"
assert oct(target.parent.stat().st_mode)[-3:] == "700"
cfg = json.loads(target.read_text())
token = cfg["auths"]["harbor.tikali.net"]["auth"]
assert base64.b64decode(token).decode() == "robot$pull:p4ss"
# rewriting is idempotent (the agent does it every tick)
registrymod.write_docker_config(tmp_path / "docker", auth)
assert json.loads(target.read_text()) == cfg
def test_docker_runner_points_the_cli_at_that_directory():
from monky_deployd.compose import Docker
d = Docker("docker", docker_config="/var/lib/monky-deployd/docker")
assert d._env()["DOCKER_CONFIG"] == "/var/lib/monky-deployd/docker"
# unset when no directory is configured — never silently fall back to a human's $HOME
assert "DOCKER_CONFIG" not in Docker("docker")._env()