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Generate certificates for the aggregation layer.

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This commit is contained in:
Tom Alexander
2026-01-09 18:19:34 -05:00
parent fa99555467
commit e43d7d2a96
13 changed files with 204 additions and 43 deletions
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35
nix/kubernetes/keys/package/deploy-script/package.nix
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@@ -106,21 +106,21 @@ let
}
{
dest_dir = "/vm/${vm_name}/persist/keys/etcd";
file = "${k8s.ca}/ca.crt";
file = "${k8s.ca.client}/client-ca.crt";
owner = 10016;
group = 10016;
mode = "0640";
}
{
dest_dir = "/vm/${vm_name}/persist/keys/kube";
file = "${k8s.ca}/ca.crt";
file = "${k8s.ca.client}/client-ca.crt";
owner = 10024;
group = 10024;
mode = "0640";
}
{
dest_dir = "/vm/${vm_name}/persist/keys/kube";
file = "${k8s.ca}/ca.key";
file = "${k8s.ca.client}/client-ca.key";
owner = 10024;
group = 10024;
mode = "0600";
@@ -175,6 +175,33 @@ let
group = 10024;
mode = "0600";
}
{
dest_dir = "/vm/${vm_name}/persist/keys/kube";
file = "${k8s.ca.requestheader-client}/requestheader-client-ca.crt";
owner = 10024;
group = 10024;
mode = "0640";
}
{
dest_dir = "/vm/${vm_name}/persist/keys/kube";
file = "${
k8s.keys."${vm_name_to_hostname vm_name}-proxy"
}/${vm_name_to_hostname vm_name}-proxy.crt";
name = "proxy.crt";
owner = 10024;
group = 10024;
mode = "0640";
}
{
dest_dir = "/vm/${vm_name}/persist/keys/kube";
file = "${
k8s.keys."${vm_name_to_hostname vm_name}-proxy"
}/${vm_name_to_hostname vm_name}-proxy.key";
name = "proxy.key";
owner = 10024;
group = 10024;
mode = "0600";
}
])
)
);
@@ -193,7 +220,7 @@ let
+ (lib.concatMapStringsSep "\n" deploy_file [
{
dest_dir = "/vm/${vm_name}/persist/keys/kube";
file = "${k8s.ca}/ca.crt";
file = "${k8s.ca.client}/client-ca.crt";
owner = 10024;
group = 10024;
mode = "0640";

0
nix/kubernetes/keys/package/k8s-ca/files/ca.conf → nix/kubernetes/keys/package/k8s-ca/files/client-ca.conf
View File

95
nix/kubernetes/keys/package/k8s-ca/files/requestheader-client-ca.conf Normal file
View File

@@ -0,0 +1,95 @@
[req]
distinguished_name = req_distinguished_name
prompt = no
x509_extensions = ca_x509_extensions
[ca_x509_extensions]
basicConstraints = CA:TRUE
keyUsage = cRLSign, keyCertSign
[req_distinguished_name]
C = US
ST = Washington
L = Seattle
CN = CA
[controller0-proxy]
distinguished_name = controller0_distinguished_name
prompt = no
req_extensions = controller0_req_extensions
[controller0_req_extensions]
basicConstraints = CA:FALSE
extendedKeyUsage = clientAuth, serverAuth
keyUsage = critical, digitalSignature, keyEncipherment
nsCertType = client
nsComment = "controller0 Certificate"
subjectAltName = @controller0_alt_names
subjectKeyIdentifier = hash
[controller0_distinguished_name]
CN = system:node:controller0
O = system:nodes
C = US
ST = Washington
L = Seattle
[controller0_alt_names]
IP.0 = 127.0.0.1
IP.4 = 10.215.1.221
IP.5 = 2620:11f:7001:7:ffff:ffff:0ad7:01dd
DNS.0 = controller0
[controller1-proxy]
distinguished_name = controller1_distinguished_name
prompt = no
req_extensions = controller1_req_extensions
[controller1_req_extensions]
basicConstraints = CA:FALSE
extendedKeyUsage = clientAuth, serverAuth
keyUsage = critical, digitalSignature, keyEncipherment
nsCertType = client
nsComment = "controller1 Certificate"
subjectAltName = @controller1_alt_names
subjectKeyIdentifier = hash
[controller1_distinguished_name]
CN = system:node:controller1
O = system:nodes
C = US
ST = Washington
L = Seattle
[controller1_alt_names]
IP.0 = 127.0.0.1
IP.4 = 10.215.1.222
IP.5 = 2620:11f:7001:7:ffff:ffff:0ad7:01de
DNS.0 = controller1
[controller2-proxy]
distinguished_name = controller2_distinguished_name
prompt = no
req_extensions = controller2_req_extensions
[controller2_req_extensions]
basicConstraints = CA:FALSE
extendedKeyUsage = clientAuth, serverAuth
keyUsage = critical, digitalSignature, keyEncipherment
nsCertType = client
nsComment = "controller2 Certificate"
subjectAltName = @controller2_alt_names
subjectKeyIdentifier = hash
[controller2_distinguished_name]
CN = system:node:controller2
O = system:nodes
C = US
ST = Washington
L = Seattle
[controller2_alt_names]
IP.0 = 127.0.0.1
IP.6 = 10.215.1.223
IP.7 = 2620:11f:7001:7:ffff:ffff:0ad7:01df
DNS.0 = controller2

21
nix/kubernetes/keys/package/k8s-ca/package.nix
View File

@@ -10,23 +10,28 @@
{
stdenv,
openssl,
ca_name,
ca_config,
...
}:
stdenv.mkDerivation (finalAttrs: {
name = "k8s-ca";
name = "k8s-ca-${ca_name}";
nativeBuildInputs = [ openssl ];
buildInputs = [ ];
unpackPhase = "true";
installPhase = ''
mkdir -p "$out"
cd "$out"
buildPhase = ''
openssl genrsa -out "${ca_name}-ca.key" 4096
openssl genrsa -out ca.key 4096
openssl req -x509 -new -sha512 -noenc \
-key ca.key -days 3653 \
-config ${./files/ca.conf} \
-out ca.crt
-key "${ca_name}-ca.key" -days 3653 \
-config "${ca_config}" \
-out "${ca_name}-ca.crt"
'';
installPhase = ''
mkdir "$out"
cp "${ca_name}-ca.crt" "${ca_name}-ca.key" $out/
'';
})

2
nix/kubernetes/keys/package/k8s-client-config/package.nix
View File

@@ -26,7 +26,7 @@ stdenv.mkDerivation (finalAttrs: {
buildPhase = ''
kubectl config set-cluster kubernetes-the-hard-way \
--certificate-authority=${k8s.ca}/ca.crt \
--certificate-authority=${k8s.ca.client}/client-ca.crt \
--embed-certs=true \
--server=${lib.strings.escapeShellArg config_server} \
--kubeconfig=${config_name}.kubeconfig

2
nix/kubernetes/keys/package/k8s-keys/package.nix
View File

@@ -15,9 +15,9 @@ symlinkJoin {
name = "k8s-keys";
paths = [
scripts
k8s.ca
k8s.encryption_config
]
++ (builtins.attrValues k8s.ca)
++ (builtins.attrValues k8s.keys)
++ (builtins.attrValues k8s.client-configs)
++ (builtins.attrValues k8s.ssh-keys)

10
nix/kubernetes/keys/package/tls-key/package.nix
View File

@@ -12,6 +12,8 @@
openssl,
k8s,
key_name,
ca_name,
ca_config,
...
}:
stdenv.mkDerivation (finalAttrs: {
@@ -22,18 +24,18 @@ stdenv.mkDerivation (finalAttrs: {
unpackPhase = "true";
buildPhase = ''
cp ${k8s.ca}/ca.crt ${k8s.ca}/ca.key ./
cp ${k8s.ca."${ca_name}"}/${ca_name}-ca.crt ${k8s.ca."${ca_name}"}/${ca_name}-ca.key ./
openssl genrsa -out "${key_name}.key" 4096
openssl req -new -key "${key_name}.key" -sha256 \
-config "${../k8s-ca/files/ca.conf}" -section ${key_name} \
-config "${ca_config}" -section ${key_name} \
-out "${key_name}.csr"
openssl x509 -req -days 3653 -in "${key_name}.csr" \
-copy_extensions copyall \
-sha256 -CA "./ca.crt" \
-CAkey "./ca.key" \
-sha256 -CA "./${ca_name}-ca.crt" \
-CAkey "./${ca_name}-ca.key" \
-CAcreateserial \
-out "${key_name}.crt"
'';

54
nix/kubernetes/keys/scope.nix
View File

@@ -78,24 +78,48 @@ makeScope newScope (
inherit all_hostnames controllers;
k8s = self;
};
certificate_authorities = {
"client" = {
ca_config = ./package/k8s-ca/files/client-ca.conf;
};
"requestheader-client" = {
ca_config = ./package/k8s-ca/files/requestheader-client-ca.conf;
};
};
certificate_authorities_merged = (
builtins.mapAttrs (ca_name: ca_config: { inherit ca_name; } // ca_config) certificate_authorities
);
in
{
ca = (callPackage ./package/k8s-ca/package.nix additional_vars);
ca = (
builtins.mapAttrs (
ca_name: ca_config:
(callPackage ./package/k8s-ca/package.nix (additional_vars // { inherit ca_name; } // ca_config))
) certificate_authorities
);
keys = (
lib.genAttrs [
"admin"
"controller0"
"controller1"
"controller2"
"worker0"
"worker1"
"worker2"
"kube-proxy"
"kube-scheduler"
"kube-controller-manager"
"kube-api-server"
"service-accounts"
] (key_name: (callPackage ./package/tls-key/package.nix (additional_vars // { inherit key_name; })))
builtins.mapAttrs
(
key_name: key_config:
(callPackage ./package/tls-key/package.nix (additional_vars // { inherit key_name; } // key_config))
)
{
"admin" = { } // certificate_authorities_merged.client;
"controller0" = { } // certificate_authorities_merged.client;
"controller1" = { } // certificate_authorities_merged.client;
"controller2" = { } // certificate_authorities_merged.client;
"worker0" = { } // certificate_authorities_merged.client;
"worker1" = { } // certificate_authorities_merged.client;
"worker2" = { } // certificate_authorities_merged.client;
"kube-proxy" = { } // certificate_authorities_merged.client;
"kube-scheduler" = { } // certificate_authorities_merged.client;
"kube-controller-manager" = { } // certificate_authorities_merged.client;
"kube-api-server" = { } // certificate_authorities_merged.client;
"service-accounts" = { } // certificate_authorities_merged.client;
"controller0-proxy" = { } // certificate_authorities_merged.requestheader-client;
"controller1-proxy" = { } // certificate_authorities_merged.requestheader-client;
"controller2-proxy" = { } // certificate_authorities_merged.requestheader-client;
}
);
ssh-keys = (
lib.genAttrs [