diff options
Diffstat (limited to 'nixos/modules/services/networking/flannel.nix')
| -rw-r--r-- | nixos/modules/services/networking/flannel.nix | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/nixos/modules/services/networking/flannel.nix b/nixos/modules/services/networking/flannel.nix deleted file mode 100644 index ac84b3d35a3..00000000000 --- a/nixos/modules/services/networking/flannel.nix +++ /dev/null @@ -1,192 +0,0 @@ -{ config, lib, pkgs, ... }: - -with lib; - -let - cfg = config.services.flannel; - - networkConfig = filterAttrs (n: v: v != null) { - Network = cfg.network; - SubnetLen = cfg.subnetLen; - SubnetMin = cfg.subnetMin; - SubnetMax = cfg.subnetMax; - Backend = cfg.backend; - }; -in { - options.services.flannel = { - enable = mkEnableOption "flannel"; - - package = mkOption { - description = "Package to use for flannel"; - type = types.package; - default = pkgs.flannel; - defaultText = literalExpression "pkgs.flannel"; - }; - - publicIp = mkOption { - description = '' - IP accessible by other nodes for inter-host communication. - Defaults to the IP of the interface being used for communication. - ''; - type = types.nullOr types.str; - default = null; - }; - - iface = mkOption { - description = '' - Interface to use (IP or name) for inter-host communication. - Defaults to the interface for the default route on the machine. - ''; - type = types.nullOr types.str; - default = null; - }; - - etcd = { - endpoints = mkOption { - description = "Etcd endpoints"; - type = types.listOf types.str; - default = ["http://127.0.0.1:2379"]; - }; - - prefix = mkOption { - description = "Etcd key prefix"; - type = types.str; - default = "/coreos.com/network"; - }; - - caFile = mkOption { - description = "Etcd certificate authority file"; - type = types.nullOr types.path; - default = null; - }; - - certFile = mkOption { - description = "Etcd cert file"; - type = types.nullOr types.path; - default = null; - }; - - keyFile = mkOption { - description = "Etcd key file"; - type = types.nullOr types.path; - default = null; - }; - }; - - kubeconfig = mkOption { - description = '' - Path to kubeconfig to use for storing flannel config using the - Kubernetes API - ''; - type = types.nullOr types.path; - default = null; - }; - - network = mkOption { - description = " IPv4 network in CIDR format to use for the entire flannel network."; - type = types.str; - }; - - nodeName = mkOption { - description = '' - Needed when running with Kubernetes as backend as this cannot be auto-detected"; - ''; - type = types.nullOr types.str; - default = with config.networking; (hostName + optionalString (domain != null) ".${domain}"); - defaultText = literalExpression '' - with config.networking; (hostName + optionalString (domain != null) ".''${domain}") - ''; - example = "node1.example.com"; - }; - - storageBackend = mkOption { - description = "Determines where flannel stores its configuration at runtime"; - type = types.enum ["etcd" "kubernetes"]; - default = "etcd"; - }; - - subnetLen = mkOption { - description = '' - The size of the subnet allocated to each host. Defaults to 24 (i.e. /24) - unless the Network was configured to be smaller than a /24 in which case - it is one less than the network. - ''; - type = types.int; - default = 24; - }; - - subnetMin = mkOption { - description = '' - The beginning of IP range which the subnet allocation should start with. - Defaults to the first subnet of Network. - ''; - type = types.nullOr types.str; - default = null; - }; - - subnetMax = mkOption { - description = '' - The end of IP range which the subnet allocation should start with. - Defaults to the last subnet of Network. - ''; - type = types.nullOr types.str; - default = null; - }; - - backend = mkOption { - description = "Type of backend to use and specific configurations for that backend."; - type = types.attrs; - default = { - Type = "vxlan"; - }; - }; - }; - - config = mkIf cfg.enable { - systemd.services.flannel = { - description = "Flannel Service"; - wantedBy = [ "multi-user.target" ]; - after = [ "network.target" ]; - environment = { - FLANNELD_PUBLIC_IP = cfg.publicIp; - FLANNELD_IFACE = cfg.iface; - } // optionalAttrs (cfg.storageBackend == "etcd") { - FLANNELD_ETCD_ENDPOINTS = concatStringsSep "," cfg.etcd.endpoints; - FLANNELD_ETCD_KEYFILE = cfg.etcd.keyFile; - FLANNELD_ETCD_CERTFILE = cfg.etcd.certFile; - FLANNELD_ETCD_CAFILE = cfg.etcd.caFile; - ETCDCTL_CERT_FILE = cfg.etcd.certFile; - ETCDCTL_KEY_FILE = cfg.etcd.keyFile; - ETCDCTL_CA_FILE = cfg.etcd.caFile; - ETCDCTL_PEERS = concatStringsSep "," cfg.etcd.endpoints; - } // optionalAttrs (cfg.storageBackend == "kubernetes") { - FLANNELD_KUBE_SUBNET_MGR = "true"; - FLANNELD_KUBECONFIG_FILE = cfg.kubeconfig; - NODE_NAME = cfg.nodeName; - }; - path = [ pkgs.iptables ]; - preStart = optionalString (cfg.storageBackend == "etcd") '' - echo "setting network configuration" - until ${pkgs.etcd}/bin/etcdctl set /coreos.com/network/config '${builtins.toJSON networkConfig}' - do - echo "setting network configuration, retry" - sleep 1 - done - ''; - serviceConfig = { - ExecStart = "${cfg.package}/bin/flannel"; - Restart = "always"; - RestartSec = "10s"; - RuntimeDirectory = "flannel"; - }; - }; - - services.etcd.enable = mkDefault (cfg.storageBackend == "etcd" && cfg.etcd.endpoints == ["http://127.0.0.1:2379"]); - - # for some reason, flannel doesn't let you configure this path - # see: https://github.com/coreos/flannel/blob/master/Documentation/configuration.md#configuration - environment.etc."kube-flannel/net-conf.json" = mkIf (cfg.storageBackend == "kubernetes") { - source = pkgs.writeText "net-conf.json" (builtins.toJSON networkConfig); - }; - }; -} |