107 lines
3.5 KiB
Nix
107 lines
3.5 KiB
Nix
# `checks.module-eval-agent-github-bao` — see ./lib.nix for the shared
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# rationale (why this suite exists, naming convention, "evaluates
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# not executes").
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#
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# The agent side of the swarm-stored GitHub token: ../agent-modules/github-token.nix
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# fetches it into the file ../agent-modules/github.nix's readers use.
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{
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pkgs,
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lib,
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self,
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nixosSystem,
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shared,
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}:
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let
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inherit
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(import ./lib.nix {
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inherit
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pkgs
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lib
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self
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nixosSystem
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;
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})
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agentWith
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runGroup
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;
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baoAddr = "https://bao.t.local:8200";
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# A store, and the integration on by default.
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agentGithubBao = shared.agentWithBao;
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# No store: the absence arm, and what makes the cases above able to fail.
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agentGithubNoBao = shared.agentBare;
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# A store, and the integration switched off.
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agentGithubOff = agentWith {
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services.hyperhive.agent.bao.addr = baoAddr;
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services.hyperhive.agent.github.enable = false;
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};
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fetchUnit = machine: machine.systemd.services.hive-agent-github-token;
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has = machine: machine.systemd.services ? hive-agent-github-token;
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hasTimer = machine: machine.systemd.timers ? hive-agent-github-token;
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in
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let
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cases = [
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{
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name = "an agent with a store address and the integration on fetches its github token";
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ok = has agentGithubBao && hasTimer agentGithubBao;
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}
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{
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name = "an agent with no store address, or with the integration off, fetches none";
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ok =
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!(has agentGithubNoBao)
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&& !(hasTimer agentGithubNoBao)
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&& !(has agentGithubOff)
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&& !(hasTimer agentGithubOff);
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}
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{
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# The nix half of `swarm_secret_client::github::account_path`, and the
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# file ./github.nix's `gh` wrapper, credential helper and poller read.
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name = "the fetch reads the agent's own github-token path into its state-dir file";
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ok =
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let
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name = agentGithubBao.services.hyperhive.agent.user.name;
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s = (fetchUnit agentGithubBao).script;
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in
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lib.hasInfix "bao kv get -format=json secret/swarm/agents/${name}/github-token >" s
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&& lib.hasInfix "token=/agents/${name}/state/github-token" s
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&& lib.hasInfix ".data.data.value | strings" s;
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}
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{
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# The agent user owns its state dir (./user.nix), and the file keeps
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# its `0600` mode.
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name = "the fetch runs as the agent, with its own store identity";
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ok =
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let
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u = fetchUnit agentGithubBao;
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name = agentGithubBao.services.hyperhive.agent.user.name;
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in
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u.serviceConfig.User == name
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&& u.serviceConfig.UMask == "0077"
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&& u.environment.BAO_ADDR == baoAddr
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&& u.environment.BAO_CLIENT_CERT == "/run/hive-agent-bao-identity/current/cert"
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&& u.environment.BAO_CLIENT_KEY == "/run/hive-agent-bao-identity/current/key";
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}
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{
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# A file a hive wrote keeps working until the operator links a token in
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# the swarm UI.
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name = "the fetch never deletes the state-dir token, and swaps it in only on a change";
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ok =
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let
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s = (fetchUnit agentGithubBao).script;
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in
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!(lib.hasInfix "rm -f \"$token\"" s)
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&& lib.hasInfix "cmp -s \"$staged\" \"$token\"" s
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&& lib.hasInfix "mv -f \"$staged\" \"$token\"" s;
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}
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{
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# The poller reads the token once at start.
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name = "the fetch runs before the github poller starts";
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ok = builtins.elem "hive-github-notify.service" (fetchUnit agentGithubBao).before;
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}
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];
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in
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runGroup "agent-github-bao" cases
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