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Monorepo for Tangled
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Nix
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server = { listenAddr = mkOption { type = types.str; default = "0.0.0.0:6555"; description = "Address to listen on"; };
dbPath = mkOption { type = types.path; default = "/var/lib/spindle/spindle.db"; description = "Path to the database file"; };
repoDir = mkOption { type = types.path; default = "/var/lib/spindle/repos"; description = "Path where synced git repositories live"; };
hostname = mkOption { type = types.str; example = "my.spindle.com"; description = "Hostname for the server (required)"; };
plcUrl = mkOption { type = types.str; default = "https://plc.directory"; description = "atproto PLC directory"; };
jetstreamEndpoint = mkOption { type = types.str; default = "wss://jetstream1.us-west.bsky.network/subscribe"; description = "Jetstream endpoint to subscribe to"; };
dev = mkOption { type = types.bool; default = false; description = "Enable development mode (disables signature verification)"; };
owner = mkOption { type = types.str; example = "did:plc:qfpnj4og54vl56wngdriaxug"; description = "DID of owner (required)"; };
maxJobCount = mkOption { type = types.int; default = 2; example = 5; description = "Maximum number of concurrent jobs to run"; };
queueSize = mkOption { type = types.int; default = 100; example = 100; description = "Maximum number of jobs queue up"; };
secrets = { provider = mkOption { type = types.str; default = "sqlite"; description = "Backend to use for secret management, valid options are 'sqlite', and 'openbao'."; };
openbao = { proxyAddr = mkOption { type = types.str; default = "http://127.0.0.1:8200"; description = "Address of the OpenBAO proxy server"; }; mount = mkOption { type = types.str; default = "spindle"; description = "Mount path in OpenBAO to read secrets from"; }; }; };
tap = { embed = mkOption { type = types.bool; default = true; description = "Run an embedded tap inside the spindle process"; };
url = mkOption { type = types.str; default = "http://[::1]:2480"; description = "URL the spindle's tap client dials"; };
bind = mkOption { type = types.str; default = "[::1]:2480"; description = "Loopback address the embedded tap server listens on"; };
dbPath = mkOption { type = types.path; default = "/var/lib/spindle/tap.db"; description = "Path to the embedded tap sqlite database"; };
relayUrl = mkOption { type = types.str; default = "https://bsky.network"; description = "Relay used by the embedded tap firehose"; }; }; };
pipelines = { logBucket = mkOption { type = types.str; default = "tangled-logs"; description = "S3 bucket for workflow logs"; }; workflowTimeout = mkOption { type = types.str; default = "5m"; description = "Timeout for each workflow step"; };
nixery = { nixery = mkOption { type = types.str; default = "nixery.tangled.sh"; # note: this is *not* on tangled.org yet description = "Nixery instance to use"; };
maxJobMemoryMb = mkOption { type = types.int; default = 6144; description = "Memory limit per nixery workflow container in MiB (default 6 GiB)"; }; maxConcurrentWorkflows = mkOption { type = types.int; default = 8; description = "Maximum number of nixery workflows running simultaneously. Zero disables this limit."; }; };
microvm = { enableKVM = mkOption { type = types.bool; default = true; description = "Enable KVM hardware acceleration"; };
imageDir = mkOption { type = types.str; default = "/var/lib/spindle/images"; description = "Directory containing microVM image spec JSONs or image spec directories"; }; overlayDir = mkOption { type = types.str; default = "/tmp"; description = "Directory to store microVM temporary overlay files"; }; defaultImage = mkOption { type = types.str; default = "nixos"; description = "Default microVM image spec to use if none is specified in workflow"; }; agentPort = mkOption { type = types.port; default = 10240; description = "Host vsock port the microVM agent connects back to"; };
limits = { total = { memoryMiB = mkOption { type = types.int; default = 0; description = "Maximum declared guest memory in MiB allowed across all running microVM workflows. Zero disables this limit."; }; vcpus = mkOption { type = types.int; default = 0; description = "Maximum declared vCPUs allowed across all running microVM workflows. Zero disables this limit."; }; diskMiB = mkOption { type = types.int; default = 0; description = "Maximum declared disk in MiB allowed across all running microVM workflows. Zero disables this limit."; }; };
workflow = { memoryMiB = mkOption { type = types.int; default = 0; description = "Maximum declared guest memory in MiB allowed for a single microVM workflow. Zero disables this limit."; }; vcpus = mkOption { type = types.int; default = 0; description = "Maximum declared vCPUs allowed for a single microVM workflow. Zero disables this limit."; }; diskMiB = mkOption { type = types.int; default = 0; description = "Maximum declared disk in MiB allowed for a single microVM workflow. Zero disables this limit."; }; }; };
cgroup = { enable = mkOption { type = types.bool; default = false; description = "Enable cgroup v2 containment for microVM processes."; }; parent = mkOption { type = types.str; default = "self"; description = "Parent cgroup for microVM workflow cgroups. Use 'self' to resolve the spindle service cgroup."; }; pidsMax = mkOption { type = types.int; default = 4096; description = "Maximum number of processes allowed in each microVM workflow cgroup."; }; swapMaxMiB = mkOption { type = types.int; default = 0; description = "Maximum swap in MiB allowed in each microVM workflow cgroup. Zero disables swap."; }; supervisorMinMiB = mkOption { type = types.int; default = 512; description = '' Amount of memory in MiB that will be protected by the cgroup for the spindle (allowing it to not get OOMed first.) ''; }; };
debugSsh = { enable = mkOption { type = types.bool; default = false; description = '' Enable the debug ssh server that lets authorized users ssh into a failed microVM to debug it. ''; }; listenAddr = mkOption { type = types.str; default = "0.0.0.0:2222"; example = "0.0.0.0:2225"; description = "Address for the debug ssh server to listen on."; }; hostKeyPath = mkOption { type = with types; nullOr path; default = null; example = "/var/lib/spindle/debug_ssh_host_key"; description = '' Path to the ssh host key for the debug server. If null, one is generated once and persisted next to the spindle db. ''; }; gracePeriod = mkOption { type = types.str; default = "5m"; description = '' How long a failed workflow's microVM is kept alive for the user to ssh in. ''; }; }; };
nixCache = { readUrls = mkOption { type = types.listOf types.str; default = []; example = ["http://ncps.internal:8501" "ssh-ng://user@my-awesome-cache"]; description = "Nix binary cache URLs the Spindle guest should read from."; };
trustedPublicKeys = mkOption { type = types.listOf types.str; default = []; example = ["internal-1:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="]; description = "Public keys trusted for the configured Nix binary caches."; };
uploadUrl = mkOption { type = types.str; default = ""; example = "local"; description = "Optional cache upload URL used by live cache import paths."; }; }; };
environmentFile = mkOption { type = with types; nullOr path; default = null; example = "/etc/spindle.env"; description = '' Additional environment file as defined in {manpage}`systemd.exec(5)`.
Sensitive secrets such as {env}`AWS_SECRET_ACCESS_KEY`, {env}`AWS_ACCESS_KEY_ID`, {env}`AWS_REGION` may be passed to the service without making them world readable in the nix store. ''; }; }; };
config = let deps = [ pkgs.git pkgs.qemu pkgs.e2fsprogs pkgs.slirp4netns pkgs.iproute2 pkgs.util-linux config.nix.package ]; in mkIf cfg.enable { environment.systemPackages = [ (pkgs.writeShellScriptBin "spindle" '' export PATH="${lib.makeBinPath deps}:$PATH" ${lib.optionalString (cfg.environmentFile != null) "set -a; source ${cfg.environmentFile}; set +a"} ${lib.concatMapStringsSep "\n" ( e: "export ${e}" ) config.systemd.services.spindle.serviceConfig.Environment} exec ${cfg.package}/bin/spindle "$@" '') ];
virtualisation.docker.enable = true;
systemd.services.spindle = { description = "spindle service"; after = [ "network.target" "docker.service" ]; wantedBy = ["multi-user.target"]; path = deps; serviceConfig = { LogsDirectory = "spindle"; StateDirectory = "spindle"; Delegate = cfg.pipelines.microvm.cgroup.enable; EnvironmentFile = mkIf (cfg.environmentFile != null) cfg.environmentFile;
Environment = [ "SPINDLE_SERVER_LISTEN_ADDR=${cfg.server.listenAddr}" "SPINDLE_SERVER_DB_PATH=${cfg.server.dbPath}" "SPINDLE_SERVER_REPO_DIR=${cfg.server.repoDir}" "SPINDLE_SERVER_HOSTNAME=${cfg.server.hostname}" "SPINDLE_SERVER_PLC_URL=${cfg.server.plcUrl}" "SPINDLE_SERVER_JETSTREAM_ENDPOINT=${cfg.server.jetstreamEndpoint}" "SPINDLE_SERVER_DEV=${lib.boolToString cfg.server.dev}" "SPINDLE_SERVER_OWNER=${cfg.server.owner}" "SPINDLE_SERVER_MAX_JOB_COUNT=${toString cfg.server.maxJobCount}" "SPINDLE_SERVER_QUEUE_SIZE=${toString cfg.server.queueSize}" "SPINDLE_SERVER_SECRETS_PROVIDER=${cfg.server.secrets.provider}" "SPINDLE_SERVER_SECRETS_OPENBAO_PROXY_ADDR=${cfg.server.secrets.openbao.proxyAddr}" "SPINDLE_SERVER_SECRETS_OPENBAO_MOUNT=${cfg.server.secrets.openbao.mount}" "SPINDLE_SERVER_TAP_EMBED=${lib.boolToString cfg.server.tap.embed}" "SPINDLE_SERVER_TAP_URL=${cfg.server.tap.url}" "SPINDLE_SERVER_TAP_BIND=${cfg.server.tap.bind}" "SPINDLE_SERVER_TAP_DB_PATH=${cfg.server.tap.dbPath}" "SPINDLE_SERVER_TAP_RELAY_URL=${cfg.server.tap.relayUrl}" "SPINDLE_NIXERY_PIPELINES_NIXERY=${cfg.pipelines.nixery.nixery}" "SPINDLE_NIXERY_PIPELINES_WORKFLOW_TIMEOUT=${cfg.pipelines.workflowTimeout}" "SPINDLE_NIXERY_PIPELINES_MAX_JOB_MEMORY_MB=${toString cfg.pipelines.nixery.maxJobMemoryMb}" "SPINDLE_NIXERY_PIPELINES_MAX_CONCURRENT_WORKFLOWS=${toString cfg.pipelines.nixery.maxConcurrentWorkflows}" "SPINDLE_MICROVM_PIPELINES_IMAGE_DIR=${cfg.pipelines.microvm.imageDir}" "SPINDLE_MICROVM_PIPELINES_OVERLAY_DIR=${cfg.pipelines.microvm.overlayDir}" "SPINDLE_MICROVM_PIPELINES_DEFAULT_IMAGE=${cfg.pipelines.microvm.defaultImage}" "SPINDLE_MICROVM_PIPELINES_AGENT_PORT=${toString cfg.pipelines.microvm.agentPort}" "SPINDLE_MICROVM_PIPELINES_ENABLE_KVM=${lib.boolToString cfg.pipelines.microvm.enableKVM}" "SPINDLE_MICROVM_PIPELINES_WORKFLOW_TIMEOUT=${cfg.pipelines.workflowTimeout}" "SPINDLE_MICROVM_PIPELINES_MAX_TOTAL_MEMORY_MIB=${toString cfg.pipelines.microvm.limits.total.memoryMiB}" "SPINDLE_MICROVM_PIPELINES_MAX_TOTAL_VCPUS=${toString cfg.pipelines.microvm.limits.total.vcpus}" "SPINDLE_MICROVM_PIPELINES_MAX_TOTAL_DISK_MIB=${toString cfg.pipelines.microvm.limits.total.diskMiB}" "SPINDLE_MICROVM_PIPELINES_MAX_WORKFLOW_MEMORY_MIB=${toString cfg.pipelines.microvm.limits.workflow.memoryMiB}" "SPINDLE_MICROVM_PIPELINES_MAX_WORKFLOW_VCPUS=${toString cfg.pipelines.microvm.limits.workflow.vcpus}" "SPINDLE_MICROVM_PIPELINES_MAX_WORKFLOW_DISK_MIB=${toString cfg.pipelines.microvm.limits.workflow.diskMiB}" "SPINDLE_MICROVM_PIPELINES_ENABLE_CGROUPS=${lib.boolToString cfg.pipelines.microvm.cgroup.enable}" "SPINDLE_MICROVM_PIPELINES_CGROUP_PARENT=${cfg.pipelines.microvm.cgroup.parent}" "SPINDLE_MICROVM_PIPELINES_CGROUP_PIDS_MAX=${toString cfg.pipelines.microvm.cgroup.pidsMax}" "SPINDLE_MICROVM_PIPELINES_CGROUP_SWAP_MAX_MIB=${toString cfg.pipelines.microvm.cgroup.swapMaxMiB}" "SPINDLE_MICROVM_PIPELINES_CGROUP_SUPERVISOR_MEMORY_MIN_MIB=${toString cfg.pipelines.microvm.cgroup.supervisorMinMiB}" "SPINDLE_MICROVM_PIPELINES_DEBUG_SSH_ENABLED=${lib.boolToString cfg.pipelines.microvm.debugSsh.enable}" "SPINDLE_MICROVM_PIPELINES_DEBUG_SSH_LISTEN_ADDR=${cfg.pipelines.microvm.debugSsh.listenAddr}" "SPINDLE_MICROVM_PIPELINES_DEBUG_SSH_HOST_KEY_PATH=${optionalString (cfg.pipelines.microvm.debugSsh.hostKeyPath != null) (toString cfg.pipelines.microvm.debugSsh.hostKeyPath)}" "SPINDLE_MICROVM_PIPELINES_DEBUG_SSH_GRACE_PERIOD=${cfg.pipelines.microvm.debugSsh.gracePeriod}" "SPINDLE_NIX_CACHE_READ_URLS=${concatStringsSep "," cfg.pipelines.nixCache.readUrls}" "SPINDLE_NIX_CACHE_TRUSTED_PUBLIC_KEYS=${concatStringsSep "," cfg.pipelines.nixCache.trustedPublicKeys}" "SPINDLE_NIX_CACHE_UPLOAD_URL=${cfg.pipelines.nixCache.uploadUrl}" "SPINDLE_S3_LOG_BUCKET=${cfg.pipelines.logBucket}" ]; ExecStart = "${cfg.package}/bin/spindle"; Restart = "always"; }; }; }; }