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kubernetes: fix minor issues

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This commit is contained in:
Matej Cotman 2017-05-24 19:05:54 +02:00 committed by Robin Gloster
parent 7f9d1a7aaf
commit 8e14e978c8
9 changed files with 104 additions and 995 deletions
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174
nixos/modules/services/cluster/kubernetes/default.nix
View file

@ -75,13 +75,93 @@ let
effect = mkOption {
description = "Effect of taint.";
example = "NoSchedule";
type = types.str;
type = types.enum ["NoSchedule" "PreferNoSchedule" "NoExecute"];
};
};
};
taints = concatMapStringsSep "," (v: "${v.key}=${v.value}:${v.effect}") (mapAttrsToList (n: v: v) cfg.kubelet.taints);
defaultAuthorizationPolicy = (optionals (any (el: el == "ABAC") cfg.apiserver.authorizationMode) [
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubecfg";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubelet";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube-worker";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube_proxy";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "client";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
]) ++ (optionals (all (el: el != "RBAC") cfg.apiserver.authorizationMode) [
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "admin";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
group = "system:serviceaccounts";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
]);
in {
###### interface
@ -205,7 +285,7 @@ in {
description = ''
Kubernetes apiserver storage backend.
'';
default = "etcd2";
default = "etcd3";
type = types.enum ["etcd2" "etcd3"];
};
@ -264,7 +344,7 @@ in {
Kubernetes apiserver authorization mode (AlwaysAllow/AlwaysDeny/ABAC/RBAC). See
<link xlink:href="http://kubernetes.io/docs/admin/authorization.html"/>
'';
default = ["ABAC"];
default = ["ABAC" "RBAC"];
type = types.listOf (types.enum ["AlwaysAllow" "AlwaysDeny" "ABAC" "RBAC"]);
};
@ -273,89 +353,11 @@ in {
Kubernetes apiserver authorization policy file. See
<link xlink:href="http://kubernetes.io/v1.0/docs/admin/authorization.html"/>
'';
default = [
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "admin";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubecfg";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubelet";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube-worker";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube_proxy";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "client";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
group = "system:serviceaccounts";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
];
default = defaultAuthorizationPolicy;
type = types.listOf types.attrs;
};
autorizationRBACSuperAdmin = mkOption {
authorizationRBACSuperAdmin = mkOption {
description = "Role based authorization super admin.";
default = "admin";
type = types.str;
@ -647,7 +649,7 @@ in {
};
applyManifests = mkOption {
description = "Whether to apply manifests.";
description = "Whether to apply manifests (this is true for master node).";
default = false;
type = types.bool;
};
@ -659,7 +661,7 @@ in {
};
taints = mkOption {
description = ".";
description = "Node taints (https://kubernetes.io/docs/concepts/configuration/assign-pod-node/).";
default = {};
type = types.attrsOf (types.submodule [ taintOptions ]);
};
@ -878,7 +880,7 @@ in {
}"
} \
${optionalString (elem "RBAC" cfg.apiserver.authorizationMode)
"--authorization-rbac-super-user=${cfg.apiserver.autorizationRBACSuperAdmin}"} \
"--authorization-rbac-super-user=${cfg.apiserver.authorizationRBACSuperAdmin}"} \
--secure-port=${toString cfg.apiserver.securePort} \
--service-cluster-ip-range=${cfg.apiserver.portalNet} \
${optionalString (cfg.apiserver.runtimeConfig != "")

240
nixos/modules/services/cluster/kubernetes/dns.nix
View file

@ -1,240 +0,0 @@
{ cfg }: {
"kubedns-cm" = {
"apiVersion" = "v1";
"kind" = "ConfigMap";
"metadata" = {
"labels" = {
"addonmanager.kubernetes.io/mode" = "EnsureExists";
};
"name" = "kube-dns";
"namespace" = "kube-system";
};
};
"kubedns-controller" = {
"apiVersion" = "extensions/v1beta1";
"kind" = "Deployment";
"metadata" = {
"labels" = {
"addonmanager.kubernetes.io/mode" = "Reconcile";
"k8s-app" = "kube-dns";
"kubernetes.io/cluster-service" = "true";
};
"name" = "kube-dns";
"namespace" = "kube-system";
};
"spec" = {
"selector" = {
"matchLabels" = {
"k8s-app" = "kube-dns";
};
};
"strategy" = {
"rollingUpdate" = {
"maxSurge" = "10%";
"maxUnavailable" = 0;
};
};
"template" = {
"metadata" = {
"annotations" = {
"scheduler.alpha.kubernetes.io/critical-pod" = "";
};
"labels" = {
"k8s-app" = "kube-dns";
};
};
"spec" = {
"containers" = [{
"args" = ["--domain=${cfg.dns.domain}."
"--dns-port=10053"
"--config-dir=/kube-dns-config"
"--kube-master-url=${cfg.kubeconfig.server}"
"--v=2"
];
"env" = [{
"name" = "PROMETHEUS_PORT";
"value" = "10055";
}];
"image" = "gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.1";
"livenessProbe" = {
"failureThreshold" = 5;
"httpGet" = {
"path" = "/healthcheck/kubedns";
"port" = 10054;
"scheme" = "HTTP";
};
"initialDelaySeconds" = 60;
"successThreshold" = 1;
"timeoutSeconds" = 5;
};
"name" = "kubedns";
"ports" = [{
"containerPort" = 10053;
"name" = "dns-local";
"protocol" = "UDP";
} {
"containerPort" = 10053;
"name" = "dns-tcp-local";
"protocol" = "TCP";
} {
"containerPort" = 10055;
"name" = "metrics";
"protocol" = "TCP";
}];
"readinessProbe" = {
"httpGet" = {
"path" = "/readiness";
"port" = 8081;
"scheme" = "HTTP";
};
"initialDelaySeconds" = 3;
"timeoutSeconds" = 5;
};
"resources" = {
"limits" = {
"memory" = "170Mi";
};
"requests" = {
"cpu" = "100m";
"memory" = "70Mi";
};
};
"volumeMounts" = [{
"mountPath" = "/kube-dns-config";
"name" = "kube-dns-config";
}];
} {
"args" = ["-v=2"
"-logtostderr"
"-configDir=/etc/k8s/dns/dnsmasq-nanny"
"-restartDnsmasq=true"
"--"
"-k"
"--cache-size=1000"
"--log-facility=-"
"--server=/${cfg.dns.domain}/127.0.0.1#10053"
"--server=/in-addr.arpa/127.0.0.1#10053"
"--server=/ip6.arpa/127.0.0.1#10053"
];
"image" = "gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.1";
"livenessProbe" = {
"failureThreshold" = 5;
"httpGet" = {
"path" = "/healthcheck/dnsmasq";
"port" = 10054;
"scheme" = "HTTP";
};
"initialDelaySeconds" = 60;
"successThreshold" = 1;
"timeoutSeconds" = 5;
};
"name" = "dnsmasq";
"ports" = [{
"containerPort" = 53;
"name" = "dns";
"protocol" = "UDP";
} {
"containerPort" = 53;
"name" = "dns-tcp";
"protocol" = "TCP";
}];
"resources" = {
"requests" = {
"cpu" = "150m";
"memory" = "20Mi";
};
};
"volumeMounts" = [{
"mountPath" = "/etc/k8s/dns/dnsmasq-nanny";
"name" = "kube-dns-config";
}];
} {
"args" = ["--v=2"
"--logtostderr"
"--probe=kubedns,127.0.0.1:10053,kubernetes.default.svc.${cfg.dns.domain},5,A"
"--probe=dnsmasq,127.0.0.1:53,kubernetes.default.svc.${cfg.dns.domain},5,A"
];
"image" = "gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.1";
"livenessProbe" = {
"failureThreshold" = 5;
"httpGet" = {
"path" = "/metrics";
"port" = 10054;
"scheme" = "HTTP";
};
"initialDelaySeconds" = 60;
"successThreshold" = 1;
"timeoutSeconds" = 5;
};
"name" = "sidecar";
"ports" = [{
"containerPort" = 10054;
"name" = "metrics";
"protocol" = "TCP";
}];
"resources" = {
"requests" = {
"cpu" = "10m";
"memory" = "20Mi";
};
};
}];
"dnsPolicy" = "Default";
"serviceAccountName" = "kube-dns";
"tolerations" = [{
"key" = "CriticalAddonsOnly";
"operator" = "Exists";
}];
"volumes" = [{
"configMap" = {
"name" = "kube-dns";
"optional" = true;
};
"name" = "kube-dns-config";
}];
};
};
};
};
"kubedns-sa" = {
"apiVersion" = "v1";
"kind" = "ServiceAccount";
"metadata" = {
"labels" = {
"addonmanager.kubernetes.io/mode" = "Reconcile";
"kubernetes.io/cluster-service" = "true";
};
"name" = "kube-dns";
"namespace" = "kube-system";
};
};
"kubedns-svc" = {
"apiVersion" = "v1";
"kind" = "Service";
"metadata" = {
"labels" = {
"addonmanager.kubernetes.io/mode" = "Reconcile";
"k8s-app" = "kube-dns";
"kubernetes.io/cluster-service" = "true";
"kubernetes.io/name" = "KubeDNS";
};
"name" = "kube-dns";
"namespace" = "kube-system";
};
"spec" = {
"clusterIP" = "${cfg.dns.serverIp}";
"ports" = [{
"name" = "dns";
"port" = 53;
"protocol" = "UDP";
} {
"name" = "dns-tcp";
"port" = 53;
"protocol" = "TCP";
}];
"selector" = {
"k8s-app" = "kube-dns";
};
};
};
}

2
nixos/release.nix
View file

@ -271,7 +271,7 @@ in rec {
tests.kernel-latest = callTest tests/kernel-latest.nix {};
tests.kernel-lts = callTest tests/kernel-lts.nix {};
tests.keystone = callTest tests/keystone.nix {};
tests.kubernetes = hydraJob (import tests/kubernetes.nix { system = "x86_64-linux"; });
tests.kubernetes = hydraJob (import tests/kubernetes/default.nix { system = "x86_64-linux"; });
tests.latestKernel.login = callTest tests/login.nix { latestKernel = true; };
tests.ldap = callTest tests/ldap.nix {};
#tests.lightdm = callTest tests/lightdm.nix {};

409
nixos/tests/kubernetes.nix
View file

@ -1,409 +0,0 @@
{ system ? builtins.currentSystem }:
with import ../lib/testing.nix { inherit system; };
with import ../lib/qemu-flags.nix;
with pkgs.lib;
let
redisPod = pkgs.writeText "redis-master-pod.json" (builtins.toJSON {
kind = "Pod";
apiVersion = "v1";
metadata.name = "redis";
metadata.labels.name = "redis";
spec.containers = [{
name = "redis";
image = "redis";
args = ["--bind" "0.0.0.0"];
imagePullPolicy = "Never";
ports = [{
name = "redis-server";
containerPort = 6379;
}];
}];
});
redisService = pkgs.writeText "redis-service.json" (builtins.toJSON {
kind = "Service";
apiVersion = "v1";
metadata.name = "redis";
spec = {
ports = [{port = 6379; targetPort = 6379;}];
selector = {name = "redis";};
};
});
redisImage = pkgs.dockerTools.buildImage {
name = "redis";
tag = "latest";
contents = pkgs.redis;
config.Entrypoint = "/bin/redis-server";
};
testSimplePod = ''
$kubernetes->execute("docker load < ${redisImage}");
$kubernetes->waitUntilSucceeds("kubectl create -f ${redisPod}");
$kubernetes->succeed("kubectl create -f ${redisService}");
$kubernetes->waitUntilSucceeds("kubectl get pod redis | grep Running");
$kubernetes->succeed("nc -z \$\(dig \@10.10.0.1 redis.default.svc.cluster.local +short\) 6379");
'';
in {
# This test runs kubernetes on a single node
trivial = makeTest {
name = "kubernetes-trivial";
nodes = {
kubernetes =
{ config, pkgs, lib, nodes, ... }:
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 2048;
programs.bash.enableCompletion = true;
environment.systemPackages = with pkgs; [ netcat bind ];
services.kubernetes.roles = ["master" "node"];
virtualisation.docker.extraOptions = "--iptables=false --ip-masq=false -b cbr0";
networking.bridges.cbr0.interfaces = [];
networking.interfaces.cbr0 = {};
};
};
testScript = ''
startAll;
$kubernetes->waitUntilSucceeds("kubectl get nodes | grep kubernetes | grep Ready");
${testSimplePod}
'';
};
cluster = let
runWithOpenSSL = file: cmd: pkgs.runCommand file {
buildInputs = [ pkgs.openssl ];
} cmd;
ca_key = runWithOpenSSL "ca-key.pem" "openssl genrsa -out $out 2048";
ca_pem = runWithOpenSSL "ca.pem" ''
openssl req \
-x509 -new -nodes -key ${ca_key} \
-days 10000 -out $out -subj "/CN=etcd-ca"
'';
etcd_key = runWithOpenSSL "etcd-key.pem" "openssl genrsa -out $out 2048";
etcd_csr = runWithOpenSSL "etcd.csr" ''
openssl req \
-new -key ${etcd_key} \
-out $out -subj "/CN=etcd" \
-config ${openssl_cnf}
'';
etcd_cert = runWithOpenSSL "etcd.pem" ''
openssl x509 \
-req -in ${etcd_csr} \
-CA ${ca_pem} -CAkey ${ca_key} \
-CAcreateserial -out $out \
-days 365 -extensions v3_req \
-extfile ${openssl_cnf}
'';
etcd_client_key = runWithOpenSSL "etcd-client-key.pem"
"openssl genrsa -out $out 2048";
etcd_client_csr = runWithOpenSSL "etcd-client-key.pem" ''
openssl req \
-new -key ${etcd_client_key} \
-out $out -subj "/CN=etcd-client" \
-config ${client_openssl_cnf}
'';
etcd_client_cert = runWithOpenSSL "etcd-client.crt" ''
openssl x509 \
-req -in ${etcd_client_csr} \
-CA ${ca_pem} -CAkey ${ca_key} -CAcreateserial \
-out $out -days 365 -extensions v3_req \
-extfile ${client_openssl_cnf}
'';
apiserver_key = runWithOpenSSL "apiserver-key.pem" "openssl genrsa -out $out 2048";
apiserver_csr = runWithOpenSSL "apiserver.csr" ''
openssl req \
-new -key ${apiserver_key} \
-out $out -subj "/CN=kube-apiserver" \
-config ${apiserver_cnf}
'';
apiserver_cert = runWithOpenSSL "apiserver.pem" ''
openssl x509 \
-req -in ${apiserver_csr} \
-CA ${ca_pem} -CAkey ${ca_key} -CAcreateserial \
-out $out -days 365 -extensions v3_req \
-extfile ${apiserver_cnf}
'';
worker_key = runWithOpenSSL "worker-key.pem" "openssl genrsa -out $out 2048";
worker_csr = runWithOpenSSL "worker.csr" ''
openssl req \
-new -key ${worker_key} \
-out $out -subj "/CN=kube-worker" \
-config ${worker_cnf}
'';
worker_cert = runWithOpenSSL "worker.pem" ''
openssl x509 \
-req -in ${worker_csr} \
-CA ${ca_pem} -CAkey ${ca_key} -CAcreateserial \
-out $out -days 365 -extensions v3_req \
-extfile ${worker_cnf}
'';
openssl_cnf = pkgs.writeText "openssl.cnf" ''
[req]
req_extensions = v3_req
distinguished_name = req_distinguished_name
[req_distinguished_name]
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = digitalSignature, keyEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alt_names
[alt_names]
DNS.1 = etcd1
DNS.2 = etcd2
DNS.3 = etcd3
IP.1 = 127.0.0.1
'';
client_openssl_cnf = pkgs.writeText "client-openssl.cnf" ''
[req]
req_extensions = v3_req
distinguished_name = req_distinguished_name
[req_distinguished_name]
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = digitalSignature, keyEncipherment
extendedKeyUsage = clientAuth
'';
apiserver_cnf = pkgs.writeText "apiserver-openssl.cnf" ''
[req]
req_extensions = v3_req
distinguished_name = req_distinguished_name
[req_distinguished_name]
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
subjectAltName = @alt_names
[alt_names]
DNS.1 = kubernetes
DNS.2 = kubernetes.default
DNS.3 = kubernetes.default.svc
DNS.4 = kubernetes.default.svc.cluster.local
IP.1 = 10.10.10.1
'';
worker_cnf = pkgs.writeText "worker-openssl.cnf" ''
[req]
req_extensions = v3_req
distinguished_name = req_distinguished_name
[req_distinguished_name]
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
subjectAltName = @alt_names
[alt_names]
DNS.1 = kubeWorker1
DNS.2 = kubeWorker2
'';
etcdNodeConfig = {
virtualisation.memorySize = 128;
services = {
etcd = {
enable = true;
keyFile = etcd_key;
certFile = etcd_cert;
trustedCaFile = ca_pem;
peerClientCertAuth = true;
listenClientUrls = ["https://0.0.0.0:2379"];
listenPeerUrls = ["https://0.0.0.0:2380"];
};
};
environment.variables = {
ETCDCTL_CERT_FILE = "${etcd_client_cert}";
ETCDCTL_KEY_FILE = "${etcd_client_key}";
ETCDCTL_CA_FILE = "${ca_pem}";
ETCDCTL_PEERS = "https://127.0.0.1:2379";
};
networking.firewall.allowedTCPPorts = [ 2379 2380 ];
};
kubeConfig = {
virtualisation.diskSize = 2048;
programs.bash.enableCompletion = true;
services.flannel = {
enable = true;
network = "10.10.0.0/16";
iface = "eth1";
etcd = {
endpoints = ["https://etcd1:2379" "https://etcd2:2379" "https://etcd3:2379"];
keyFile = etcd_client_key;
certFile = etcd_client_cert;
caFile = ca_pem;
};
};
# vxlan
networking.firewall.allowedUDPPorts = [ 8472 ];
systemd.services.docker.after = ["flannel.service"];
systemd.services.docker.serviceConfig.EnvironmentFile = "/run/flannel/subnet.env";
virtualisation.docker.extraOptions = "--iptables=false --ip-masq=false --bip $FLANNEL_SUBNET";
services.kubernetes.verbose = true;
services.kubernetes.etcd = {
servers = ["https://etcd1:2379" "https://etcd2:2379" "https://etcd3:2379"];
keyFile = etcd_client_key;
certFile = etcd_client_cert;
caFile = ca_pem;
};
environment.systemPackages = [ pkgs.bind pkgs.tcpdump pkgs.utillinux ];
};
kubeMasterConfig = {pkgs, ...}: {
require = [kubeConfig];
# kube apiserver
networking.firewall.allowedTCPPorts = [ 443 ];
virtualisation.memorySize = 512;
services.kubernetes = {
roles = ["master"];
scheduler.leaderElect = true;
controllerManager.leaderElect = true;
apiserver = {
publicAddress = "0.0.0.0";
advertiseAddress = "192.168.1.8";
tlsKeyFile = apiserver_key;
tlsCertFile = apiserver_cert;
clientCaFile = ca_pem;
kubeletClientCaFile = ca_pem;
kubeletClientKeyFile = worker_key;
kubeletClientCertFile = worker_cert;
};
};
};
kubeWorkerConfig = { pkgs, ... }: {
require = [kubeConfig];
virtualisation.memorySize = 512;
# kubelet
networking.firewall.allowedTCPPorts = [ 10250 ];
services.kubernetes = {
roles = ["node"];
kubeconfig = {
server = "https://kubernetes:443";
caFile = ca_pem;
certFile = worker_cert;
keyFile = worker_key;
};
kubelet = {
tlsKeyFile = worker_key;
tlsCertFile = worker_cert;
};
};
};
in makeTest {
name = "kubernetes-cluster";
nodes = {
etcd1 = { config, pkgs, nodes, ... }: {
require = [etcdNodeConfig];
services.etcd = {
advertiseClientUrls = ["https://etcd1:2379"];
initialCluster = ["etcd1=https://etcd1:2380" "etcd2=https://etcd2:2380" "etcd3=https://etcd3:2380"];
initialAdvertisePeerUrls = ["https://etcd1:2380"];
};
};
etcd2 = { config, pkgs, ... }: {
require = [etcdNodeConfig];
services.etcd = {
advertiseClientUrls = ["https://etcd2:2379"];
initialCluster = ["etcd1=https://etcd1:2380" "etcd2=https://etcd2:2380" "etcd3=https://etcd3:2380"];
initialAdvertisePeerUrls = ["https://etcd2:2380"];
};
};
etcd3 = { config, pkgs, ... }: {
require = [etcdNodeConfig];
services.etcd = {
advertiseClientUrls = ["https://etcd3:2379"];
initialCluster = ["etcd1=https://etcd1:2380" "etcd2=https://etcd2:2380" "etcd3=https://etcd3:2380"];
initialAdvertisePeerUrls = ["https://etcd3:2380"];
};
};
kubeMaster1 = { config, pkgs, lib, nodes, ... }: {
require = [kubeMasterConfig];
};
kubeMaster2 = { config, pkgs, lib, nodes, ... }: {
require = [kubeMasterConfig];
};
# Kubernetes TCP load balancer
kubernetes = { config, pkgs, ... }: {
# kubernetes
networking.firewall.allowedTCPPorts = [ 443 ];
services.haproxy.enable = true;
services.haproxy.config = ''
global
log 127.0.0.1 local0 notice
user haproxy
group haproxy
defaults
log global
retries 2
timeout connect 3000
timeout server 5000
timeout client 5000
listen kubernetes
bind 0.0.0.0:443
mode tcp
option ssl-hello-chk
balance roundrobin
server kube-master-1 kubeMaster1:443 check
server kube-master-2 kubeMaster2:443 check
'';
};
kubeWorker1 = { config, pkgs, lib, nodes, ... }: {
require = [kubeWorkerConfig];
};
kubeWorker2 = { config, pkgs, lib, nodes, ... }: {
require = [kubeWorkerConfig];
};
};
testScript = ''
startAll;
${testSimplePod}
'';
};
}

10
nixos/tests/kubernetes/default.nix
View file

@ -1,7 +1,7 @@
{ }:
{ system ? builtins.currentSystem }:
{
kubernetes-singlenode = import ./singlenode.nix {};
kubernetes-multinode-kubectl = import ./multinode-kubectl.nix {};
kubernetes-rbac = import ./rbac.nix {};
kubernetes-dns = import ./dns.nix {};
kubernetes-singlenode = import ./singlenode.nix { inherit system; };
kubernetes-multinode-kubectl = import ./multinode-kubectl.nix { inherit system; };
kubernetes-rbac = import ./rbac.nix { inherit system; };
kubernetes-dns = import ./dns.nix { inherit system; };
}

81
nixos/tests/kubernetes/kubernetes-master.nix
View file

@ -62,87 +62,6 @@ in
portalNet = "10.1.10.0/24"; # --service-cluster-ip-range
runtimeConfig = "";
/*extraOpts = "--v=2";*/
authorizationMode = ["ABAC"];
authorizationPolicy = [
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubecfg";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubelet";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube-worker";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube_proxy";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "client";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
group = "system:serviceaccounts";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
group = "system:authenticated";
readonly = true;
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
];
};
};
}

8
nixos/tests/kubernetes/multinode-kubectl.nix
View file

@ -84,9 +84,7 @@ in makeTest {
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 4096;
# networking.hostName = mkForce "master";
networking.interfaces.eth1.ip4 = mkForce [{address = servers.master; prefixLength = 24;}];
# networking.nat.externalIP = "192.168.1.1";
networking.primaryIPAddress = mkForce servers.master;
}
(import ./kubernetes-common.nix { inherit pkgs config certs servers; })
@ -99,9 +97,7 @@ in makeTest {
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 4096;
# networking.hostName = mkForce "one";
networking.interfaces.eth1.ip4 = mkForce [{address = servers.one; prefixLength = 24;}];
# networking.nat.externalIP = "192.168.1.2";
networking.primaryIPAddress = mkForce servers.one;
services.kubernetes.roles = ["node"];
}
@ -114,9 +110,7 @@ in makeTest {
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 4096;
# networking.hostName = mkForce "two";
networking.interfaces.eth1.ip4 = mkForce [{address = servers.two; prefixLength = 24;}];
# networking.nat.externalIP = "192.168.1.3";
networking.primaryIPAddress = mkForce servers.two;
services.kubernetes.roles = ["node"];
}
@ -129,9 +123,7 @@ in makeTest {
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 4096;
# networking.hostName = mkForce "three";
networking.interfaces.eth1.ip4 = mkForce [{address = servers.three; prefixLength = 24;}];
# networking.nat.externalIP = "192.168.1.4";
networking.primaryIPAddress = mkForce servers.three;
services.kubernetes.roles = ["node"];
}

78
nixos/tests/kubernetes/rbac.nix
View file

@ -39,16 +39,16 @@ let
});
roRole = pkgs.writeText "ro-role.json" (builtins.toJSON {
"apiVersion" = "rbac.authorization.k8s.io/v1beta1";
"kind" = "Role";
"metadata" = {
"name" = "pod-reader";
"namespace" = "default";
apiVersion = "rbac.authorization.k8s.io/v1beta1";
kind = "Role";
metadata = {
name = "pod-reader";
namespace = "default";
};
"rules" = [{
"apiGroups" = [""];
"resources" = ["pods"];
"verbs" = ["get" "list" "watch"];
rules = [{
apiGroups = [""];
resources = ["pods"];
verbs = ["get" "list" "watch"];
}];
});
@ -110,7 +110,7 @@ let
'';
in makeTest {
name = "kubernetes-multinode-rbac";
name = "kubernetes-rbac";
nodes = {
master =
@ -121,64 +121,6 @@ in makeTest {
virtualisation.diskSize = 4096;
networking.interfaces.eth1.ip4 = mkForce [{address = servers.master; prefixLength = 24;}];
networking.primaryIPAddress = mkForce servers.master;
services.kubernetes.apiserver.authorizationMode = mkForce ["ABAC" "RBAC"];
services.kubernetes.apiserver.authorizationPolicy = mkForce [
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubecfg";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kubelet";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube-worker";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "kube_proxy";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
{
apiVersion = "abac.authorization.kubernetes.io/v1beta1";
kind = "Policy";
spec = {
user = "client";
namespace = "*";
resource = "*";
apiGroup = "*";
nonResourcePath = "*";
};
}
];
}
(import ./kubernetes-common.nix { inherit pkgs config certs servers; })
(import ./kubernetes-master.nix { inherit pkgs config certs; })

97
nixos/tests/kubernetes/singlenode-kubectl.nix
View file

@ -1,97 +0,0 @@
{ system ? builtins.currentSystem }:
with import ../../lib/testing.nix { inherit system; };
with import ../../lib/qemu-flags.nix;
with pkgs.lib;
let
certs = import ./certs.nix { servers = {}; };
kubectlPod = pkgs.writeText "kubectl-pod.json" (builtins.toJSON {
kind = "Pod";
apiVersion = "v1";
metadata.name = "kubectl";
metadata.labels.name = "kubectl";
spec.containers = [{
name = "kubectl";
image = "kubectl:latest";
command = ["${pkgs.busybox}/bin/tail" "-f"];
imagePullPolicy = "Never";
tty = true;
}];
});
kubectlImage = pkgs.dockerTools.buildImage {
name = "kubectl";
tag = "latest";
contents = [ pkgs.kubernetes pkgs.busybox certs kubeconfig ];
config.Entrypoint = "${pkgs.busybox}/bin/sh";
};
kubeconfig = pkgs.writeTextDir "kubeconfig.json" (builtins.toJSON {
apiVersion = "v1";
kind = "Config";
clusters = [{
name = "local";
cluster.certificate-authority = "/ca.pem";
cluster.server = "https://192.168.1.1:4443/";
}];
users = [{
name = "kubelet";
user = {
client-certificate = "/admin.crt";
client-key = "/admin-key.pem";
};
}];
contexts = [{
context = {
cluster = "local";
user = "kubelet";
};
current-context = "kubelet-context";
}];
});
test = ''
$kubernetes->execute("docker load < ${kubectlImage}");
$kubernetes->waitUntilSucceeds("kubectl create -f ${kubectlPod} || kubectl apply -f ${kubectlPod}");
$kubernetes->waitUntilSucceeds("kubectl get pod kubectl | grep Running");
# FIXME: this test fails, for some reason it can not reach host ip address
$kubernetes->succeed("kubectl exec -ti kubectl -- kubectl --kubeconfig=/kubeconfig.json version");
'';
in makeTest {
name = "kubernetes-singlenode-kubectl";
nodes = {
kubernetes =
{ config, pkgs, lib, nodes, ... }:
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 4096;
programs.bash.enableCompletion = true;
environment.systemPackages = with pkgs; [ netcat bind ];
services.kubernetes.roles = ["master" "node"];
services.kubernetes.apiserver.securePort = 4443;
services.kubernetes.dns.port = 4453;
services.kubernetes.clusterCidr = "10.0.0.0/8";
virtualisation.docker.extraOptions = "--iptables=false --ip-masq=false -b cbr0";
networking.interfaces.eth1.ip4 = mkForce [{address = "192.168.1.1"; prefixLength = 24;}];
networking.primaryIPAddress = mkForce "192.168.1.1";
networking.bridges.cbr0.interfaces = [];
networking.interfaces.cbr0 = {};
services.dnsmasq.enable = true;
services.dnsmasq.servers = ["/${config.services.kubernetes.dns.domain}/127.0.0.1#4453"];
};
};
testScript = ''
startAll;
${test}
'';
}