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nixpkgs/nixos/modules/services/cluster/kubernetes/addons/dashboard.nix
Silvan Mosberger 4ee3e8b21d
nixos/treewide: Move rename.nix imports to their respective modules
A centralized list for these renames is not good because:
- It breaks disabledModules for modules that have a rename defined
- Adding/removing renames for a module means having to find them in the
central file
- Merge conflicts due to multiple people editing the central file
2019-12-10 02:51:19 +01:00

333 lines
11 KiB
Nix

{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.kubernetes.addons.dashboard;
in {
imports = [
(mkRenamedOptionModule [ "services" "kubernetes" "addons" "dashboard" "enableRBAC" ] [ "services" "kubernetes" "addons" "dashboard" "rbac" "enable" ])
];
options.services.kubernetes.addons.dashboard = {
enable = mkEnableOption "kubernetes dashboard addon";
extraArgs = mkOption {
description = "Extra arguments to append to the dashboard cmdline";
type = types.listOf types.str;
default = [];
example = ["--enable-skip-login"];
};
rbac = mkOption {
description = "Role-based access control (RBAC) options";
default = {};
type = types.submodule {
options = {
enable = mkOption {
description = "Whether to enable role based access control is enabled for kubernetes dashboard";
type = types.bool;
default = elem "RBAC" config.services.kubernetes.apiserver.authorizationMode;
};
clusterAdmin = mkOption {
description = "Whether to assign cluster admin rights to the kubernetes dashboard";
type = types.bool;
default = false;
};
};
};
};
version = mkOption {
description = "Which version of the kubernetes dashboard to deploy";
type = types.str;
default = "v1.10.1";
};
image = mkOption {
description = "Docker image to seed for the kubernetes dashboard container.";
type = types.attrs;
default = {
imageName = "k8s.gcr.io/kubernetes-dashboard-amd64";
imageDigest = "sha256:0ae6b69432e78069c5ce2bcde0fe409c5c4d6f0f4d9cd50a17974fea38898747";
finalImageTag = cfg.version;
sha256 = "01xrr4pwgr2hcjrjsi3d14ifpzdfbxzqpzxbk2fkbjb9zkv38zxy";
};
};
};
config = mkIf cfg.enable {
services.kubernetes.kubelet.seedDockerImages = [(pkgs.dockerTools.pullImage cfg.image)];
services.kubernetes.addonManager.addons = {
kubernetes-dashboard-deployment = {
kind = "Deployment";
apiVersion = "apps/v1";
metadata = {
labels = {
k8s-addon = "kubernetes-dashboard.addons.k8s.io";
k8s-app = "kubernetes-dashboard";
version = cfg.version;
"kubernetes.io/cluster-service" = "true";
"addonmanager.kubernetes.io/mode" = "Reconcile";
};
name = "kubernetes-dashboard";
namespace = "kube-system";
};
spec = {
replicas = 1;
revisionHistoryLimit = 10;
selector.matchLabels.k8s-app = "kubernetes-dashboard";
template = {
metadata = {
labels = {
k8s-addon = "kubernetes-dashboard.addons.k8s.io";
k8s-app = "kubernetes-dashboard";
version = cfg.version;
"kubernetes.io/cluster-service" = "true";
};
annotations = {
"scheduler.alpha.kubernetes.io/critical-pod" = "";
};
};
spec = {
priorityClassName = "system-cluster-critical";
containers = [{
name = "kubernetes-dashboard";
image = with cfg.image; "${imageName}:${finalImageTag}";
ports = [{
containerPort = 8443;
protocol = "TCP";
}];
resources = {
limits = {
cpu = "100m";
memory = "300Mi";
};
requests = {
cpu = "100m";
memory = "100Mi";
};
};
args = ["--auto-generate-certificates"] ++ cfg.extraArgs;
volumeMounts = [{
name = "tmp-volume";
mountPath = "/tmp";
} {
name = "kubernetes-dashboard-certs";
mountPath = "/certs";
}];
livenessProbe = {
httpGet = {
scheme = "HTTPS";
path = "/";
port = 8443;
};
initialDelaySeconds = 30;
timeoutSeconds = 30;
};
}];
volumes = [{
name = "kubernetes-dashboard-certs";
secret = {
secretName = "kubernetes-dashboard-certs";
};
} {
name = "tmp-volume";
emptyDir = {};
}];
serviceAccountName = "kubernetes-dashboard";
tolerations = [{
key = "node-role.kubernetes.io/master";
effect = "NoSchedule";
} {
key = "CriticalAddonsOnly";
operator = "Exists";
}];
};
};
};
};
kubernetes-dashboard-svc = {
apiVersion = "v1";
kind = "Service";
metadata = {
labels = {
k8s-addon = "kubernetes-dashboard.addons.k8s.io";
k8s-app = "kubernetes-dashboard";
"kubernetes.io/cluster-service" = "true";
"kubernetes.io/name" = "KubeDashboard";
"addonmanager.kubernetes.io/mode" = "Reconcile";
};
name = "kubernetes-dashboard";
namespace = "kube-system";
};
spec = {
ports = [{
port = 443;
targetPort = 8443;
}];
selector.k8s-app = "kubernetes-dashboard";
};
};
kubernetes-dashboard-sa = {
apiVersion = "v1";
kind = "ServiceAccount";
metadata = {
labels = {
k8s-app = "kubernetes-dashboard";
k8s-addon = "kubernetes-dashboard.addons.k8s.io";
"addonmanager.kubernetes.io/mode" = "Reconcile";
};
name = "kubernetes-dashboard";
namespace = "kube-system";
};
};
kubernetes-dashboard-sec-certs = {
apiVersion = "v1";
kind = "Secret";
metadata = {
labels = {
k8s-app = "kubernetes-dashboard";
# Allows editing resource and makes sure it is created first.
"addonmanager.kubernetes.io/mode" = "EnsureExists";
};
name = "kubernetes-dashboard-certs";
namespace = "kube-system";
};
type = "Opaque";
};
kubernetes-dashboard-sec-kholder = {
apiVersion = "v1";
kind = "Secret";
metadata = {
labels = {
k8s-app = "kubernetes-dashboard";
# Allows editing resource and makes sure it is created first.
"addonmanager.kubernetes.io/mode" = "EnsureExists";
};
name = "kubernetes-dashboard-key-holder";
namespace = "kube-system";
};
type = "Opaque";
};
kubernetes-dashboard-cm = {
apiVersion = "v1";
kind = "ConfigMap";
metadata = {
labels = {
k8s-app = "kubernetes-dashboard";
# Allows editing resource and makes sure it is created first.
"addonmanager.kubernetes.io/mode" = "EnsureExists";
};
name = "kubernetes-dashboard-settings";
namespace = "kube-system";
};
};
} // (optionalAttrs cfg.rbac.enable
(let
subjects = [{
kind = "ServiceAccount";
name = "kubernetes-dashboard";
namespace = "kube-system";
}];
labels = {
k8s-app = "kubernetes-dashboard";
k8s-addon = "kubernetes-dashboard.addons.k8s.io";
"addonmanager.kubernetes.io/mode" = "Reconcile";
};
in
(if cfg.rbac.clusterAdmin then {
kubernetes-dashboard-crb = {
apiVersion = "rbac.authorization.k8s.io/v1";
kind = "ClusterRoleBinding";
metadata = {
name = "kubernetes-dashboard";
inherit labels;
};
roleRef = {
apiGroup = "rbac.authorization.k8s.io";
kind = "ClusterRole";
name = "cluster-admin";
};
inherit subjects;
};
}
else
{
# Upstream role- and rolebinding as per:
# https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/alternative/kubernetes-dashboard.yaml
kubernetes-dashboard-role = {
apiVersion = "rbac.authorization.k8s.io/v1";
kind = "Role";
metadata = {
name = "kubernetes-dashboard-minimal";
namespace = "kube-system";
inherit labels;
};
rules = [
# Allow Dashboard to create 'kubernetes-dashboard-key-holder' secret.
{
apiGroups = [""];
resources = ["secrets"];
verbs = ["create"];
}
# Allow Dashboard to create 'kubernetes-dashboard-settings' config map.
{
apiGroups = [""];
resources = ["configmaps"];
verbs = ["create"];
}
# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
{
apiGroups = [""];
resources = ["secrets"];
resourceNames = ["kubernetes-dashboard-key-holder"];
verbs = ["get" "update" "delete"];
}
# Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
{
apiGroups = [""];
resources = ["configmaps"];
resourceNames = ["kubernetes-dashboard-settings"];
verbs = ["get" "update"];
}
# Allow Dashboard to get metrics from heapster.
{
apiGroups = [""];
resources = ["services"];
resourceNames = ["heapster"];
verbs = ["proxy"];
}
{
apiGroups = [""];
resources = ["services/proxy"];
resourceNames = ["heapster" "http:heapster:" "https:heapster:"];
verbs = ["get"];
}
];
};
kubernetes-dashboard-rb = {
apiVersion = "rbac.authorization.k8s.io/v1";
kind = "RoleBinding";
metadata = {
name = "kubernetes-dashboard-minimal";
namespace = "kube-system";
inherit labels;
};
roleRef = {
apiGroup = "rbac.authorization.k8s.io";
kind = "Role";
name = "kubernetes-dashboard-minimal";
};
inherit subjects;
};
})
));
};
}