mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-21 13:10:33 +00:00
230 lines
6.4 KiB
Nix
230 lines
6.4 KiB
Nix
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{
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pkgs ? import <nixpkgs> {},
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servers ? {test = "1.2.3.4";},
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internalDomain ? "cluster.local",
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externalDomain ? "nixos.xyz"
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}:
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let
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mkAltNames = ipFrom: dnsFrom:
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pkgs.lib.concatImapStringsSep "\n" (i: v: "IP.${toString (i+ipFrom)} = ${v.ip}\nDNS.${toString (i+dnsFrom)} = ${v.name}.${externalDomain}") (pkgs.lib.mapAttrsToList (n: v: {name = n; ip = v;}) servers);
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runWithOpenSSL = file: cmd: pkgs.runCommand file {
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buildInputs = [ pkgs.openssl ];
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passthru = { inherit file; };
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} cmd;
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ca_key = runWithOpenSSL "ca-key.pem" "openssl genrsa -out $out 2048";
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ca_pem = runWithOpenSSL "ca.pem" ''
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openssl req \
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-x509 -new -nodes -key ${ca_key} \
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-days 10000 -out $out -subj "/CN=etcd-ca"
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'';
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etcd_cnf = pkgs.writeText "openssl.cnf" ''
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[req]
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req_extensions = v3_req
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distinguished_name = req_distinguished_name
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[req_distinguished_name]
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[ v3_req ]
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basicConstraints = CA:FALSE
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keyUsage = digitalSignature, keyEncipherment
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extendedKeyUsage = serverAuth
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subjectAltName = @alt_names
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[alt_names]
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DNS.1 = etcd.kubernetes.${externalDomain}
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IP.1 = 127.0.0.1
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'';
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etcd_key = runWithOpenSSL "etcd-key.pem" "openssl genrsa -out $out 2048";
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etcd_csr = runWithOpenSSL "etcd.csr" ''
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openssl req \
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-new -key ${etcd_key} \
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-out $out -subj "/CN=etcd" \
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-config ${etcd_cnf}
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'';
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etcd_cert = runWithOpenSSL "etcd.pem" ''
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openssl x509 \
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-req -in ${etcd_csr} \
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-CA ${ca_pem} -CAkey ${ca_key} \
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-CAcreateserial -out $out \
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-days 3650 -extensions v3_req \
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-extfile ${etcd_cnf}
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'';
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etcd_client_key = runWithOpenSSL "etcd-client-key.pem"
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"openssl genrsa -out $out 2048";
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etcd_client_csr = runWithOpenSSL "etcd-client.csr" ''
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openssl req \
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-new -key ${etcd_client_key} \
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-out $out -subj "/CN=etcd-client" \
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-config ${client_openssl_cnf}
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'';
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etcd_client_cert = runWithOpenSSL "etcd-client.crt" ''
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openssl x509 \
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-req -in ${etcd_client_csr} \
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-CA ${ca_pem} -CAkey ${ca_key} -CAcreateserial \
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-out $out -days 3650 -extensions v3_req \
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-extfile ${client_openssl_cnf}
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'';
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admin_key = runWithOpenSSL "admin-key.pem"
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"openssl genrsa -out $out 2048";
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admin_csr = runWithOpenSSL "admin.csr" ''
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openssl req \
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-new -key ${admin_key} \
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-out $out -subj "/CN=admin/O=system:masters" \
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-config ${client_openssl_cnf}
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'';
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admin_cert = runWithOpenSSL "admin.crt" ''
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openssl x509 \
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-req -in ${admin_csr} \
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-CA ${ca_pem} -CAkey ${ca_key} -CAcreateserial \
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-out $out -days 3650 -extensions v3_req \
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-extfile ${client_openssl_cnf}
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'';
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apiserver_key = runWithOpenSSL "apiserver-key.pem" "openssl genrsa -out $out 2048";
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apiserver_csr = runWithOpenSSL "apiserver.csr" ''
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openssl req \
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-new -key ${apiserver_key} \
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-out $out -subj "/CN=kube-apiserver" \
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-config ${apiserver_cnf}
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'';
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apiserver_cert = runWithOpenSSL "apiserver.pem" ''
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openssl x509 \
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-req -in ${apiserver_csr} \
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-CA ${ca_pem} -CAkey ${ca_key} -CAcreateserial \
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-out $out -days 3650 -extensions v3_req \
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-extfile ${apiserver_cnf}
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'';
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worker_key = runWithOpenSSL "worker-key.pem" "openssl genrsa -out $out 2048";
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worker_csr = runWithOpenSSL "worker.csr" ''
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openssl req \
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-new -key ${worker_key} \
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-out $out -subj "/CN=kube-worker/O=system:authenticated" \
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-config ${worker_cnf}
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'';
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worker_cert = runWithOpenSSL "worker.pem" ''
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openssl x509 \
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-req -in ${worker_csr} \
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-CA ${ca_pem} -CAkey ${ca_key} -CAcreateserial \
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-out $out -days 3650 -extensions v3_req \
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-extfile ${worker_cnf}
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'';
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openssl_cnf = pkgs.writeText "openssl.cnf" ''
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[req]
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req_extensions = v3_req
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distinguished_name = req_distinguished_name
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[req_distinguished_name]
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[ v3_req ]
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basicConstraints = CA:FALSE
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keyUsage = digitalSignature, keyEncipherment
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extendedKeyUsage = serverAuth
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subjectAltName = @alt_names
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[alt_names]
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DNS.1 = *.cluster.${externalDomain}
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IP.1 = 127.0.0.1
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${mkAltNames 1 1}
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'';
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client_openssl_cnf = pkgs.writeText "client-openssl.cnf" ''
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[req]
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req_extensions = v3_req
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distinguished_name = req_distinguished_name
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[req_distinguished_name]
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[ v3_req ]
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basicConstraints = CA:FALSE
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keyUsage = digitalSignature, keyEncipherment
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extendedKeyUsage = clientAuth
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subjectAltName = @alt_names
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[alt_names]
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DNS.1 = kubernetes
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DNS.2 = kubernetes.default
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DNS.3 = kubernetes.default.svc
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DNS.4 = kubernetes.default.svc.${internalDomain}
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DNS.5 = kubernetes.${externalDomain}
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DNS.6 = *.cluster.${externalDomain}
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IP.1 = 10.1.10.1
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${mkAltNames 1 6}
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'';
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apiserver_cnf = pkgs.writeText "apiserver-openssl.cnf" ''
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[req]
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req_extensions = v3_req
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distinguished_name = req_distinguished_name
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[req_distinguished_name]
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[ v3_req ]
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basicConstraints = CA:FALSE
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keyUsage = nonRepudiation, digitalSignature, keyEncipherment
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extendedKeyUsage = serverAuth
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subjectAltName = @alt_names
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[alt_names]
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DNS.1 = kubernetes
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DNS.2 = kubernetes.default
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DNS.3 = kubernetes.default.svc
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DNS.4 = kubernetes.default.svc.${internalDomain}
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DNS.5 = kubernetes.${externalDomain}
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DNS.6 = *.cluster.${externalDomain}
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IP.1 = 10.1.10.1
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${mkAltNames 1 6}
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'';
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worker_cnf = pkgs.writeText "worker-openssl.cnf" ''
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[req]
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req_extensions = v3_req
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distinguished_name = req_distinguished_name
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[req_distinguished_name]
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[ v3_req ]
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basicConstraints = CA:FALSE
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keyUsage = nonRepudiation, digitalSignature, keyEncipherment
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subjectAltName = @alt_names
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[alt_names]
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DNS.1 = *.cluster.${externalDomain}
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IP.1 = 10.1.10.1
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${mkAltNames 1 1}
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'';
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ln = cert: target: ''
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cp -v ${cert} ${target}/${cert.file}
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'';
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in
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pkgs.stdenv.mkDerivation rec {
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name = "kubernetes-certs";
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unpackPhase = "true";
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installPhase = ''
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set -xe
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mkdir -p $out
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${ln ca_key "$out"}
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${ln ca_pem "$out"}
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${ln etcd_key "$out"}
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${ln etcd_csr "$out"}
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${ln etcd_cert "$out"}
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${ln etcd_client_key "$out"}
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${ln etcd_client_csr "$out"}
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${ln etcd_client_cert "$out"}
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${ln apiserver_key "$out"}
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${ln apiserver_csr "$out"}
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${ln apiserver_cert "$out"}
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${ln worker_key "$out"}
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${ln worker_csr "$out"}
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${ln worker_cert "$out"}
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${ln admin_key "$out"}
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${ln admin_csr "$out"}
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${ln admin_cert "$out"}
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'';
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}
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