73 lines
2.7 KiB
Nix
73 lines
2.7 KiB
Nix
# Extra navigation links surfaced on the hive-c0re dashboard card for
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# this agent: the option and the oneshot that writes them into the
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# state dir where hive-c0re reads them.
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{
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lib,
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config,
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...
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}:
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{
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options.hyperhive.dashboardLinks = lib.mkOption {
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type = lib.types.listOf (
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lib.types.submodule {
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options = {
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label = lib.mkOption {
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type = lib.types.str;
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description = "Display label for the link.";
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};
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icon = lib.mkOption {
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type = lib.types.str;
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default = "";
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description = "Optional icon emoji or short glyph.";
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};
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url = lib.mkOption {
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type = lib.types.str;
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description = "Full URL (may include a different port, e.g. http://localhost:9001/stats).";
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};
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};
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}
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);
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default = [ ];
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example = lib.literalExpression ''
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[
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{ label = "Stats"; icon = "📊"; url = "http://localhost:9001/stats"; }
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]
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'';
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description = ''
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Extra navigation links surfaced on the hive-c0re dashboard card for
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this agent. Declare any additional web UI pages the agent exposes —
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stats pages, custom UIs, etc. hive-c0re reads the JSON file this
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option produces at each container-view snapshot and attaches the
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links to the agent card without any code changes.
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'';
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};
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config = {
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# Write declared dashboardLinks to the state dir so hive-c0re can
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# read them without accessing the container's /etc/ from the host.
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# Best-effort oneshot (always exit 0):
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# docs/conventions.md::Best-effort oneshot services.
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systemd.services.hive-dashboard-links = lib.mkIf (config.hyperhive.dashboardLinks != [ ]) {
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description = "write declarative dashboardLinks to agent state dir";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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# Pin the journal identity (else it's the `script` store-path wrapper).
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SyslogIdentifier = "hive-dashboard-links";
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};
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environment.LINKS_JSON = builtins.toJSON config.hyperhive.dashboardLinks;
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script = ''
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# Sub-agents have their state dir bind-mounted at /agents/<name>/state.
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# Use a glob — exactly one match per container at runtime.
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STATE_DIR=$(echo /agents/*/state)
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if [ ! -d "$STATE_DIR" ]; then
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echo "hive-dashboard-links: no state dir found at /agents/*/state; skipping"
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exit 0
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fi
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printf '%s' "$LINKS_JSON" > "$STATE_DIR/hyperhive-dashboard-links.json"
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echo "hive-dashboard-links: wrote $(printf '%s' "$LINKS_JSON" | wc -c) bytes to $STATE_DIR/hyperhive-dashboard-links.json"
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'';
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};
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};
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}
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