/**
* Find cluster port mapping that corresponds to cartridge port mapping.
*
* @param clusterPortMappings
* @param portMapping
* @return
*/
private ClusterPortMapping findClusterPortMapping(
Collection<ClusterPortMapping> clusterPortMappings, PortMapping portMapping) {
for (ClusterPortMapping clusterPortMapping : clusterPortMappings) {
if (clusterPortMapping.getName().equals(portMapping.getName())) {
return clusterPortMapping;
}
}
return null;
}
/**
* Generate kubernetes service ports for cluster.
*
* @param kubernetesClusterContext
* @param clusterId
* @param cartridge
*/
private void generateKubernetesServicePorts(
String applicationId,
String clusterId,
KubernetesClusterContext kubernetesClusterContext,
Cartridge cartridge) {
synchronized (KubernetesIaas.class) {
if (cartridge != null) {
StringBuilder portMappingStrBuilder = new StringBuilder();
for (PortMapping portMapping : Arrays.asList(cartridge.getPortMappings())) {
Collection<ClusterPortMapping> clusterPortMappings =
CloudControllerContext.getInstance().getClusterPortMappings(applicationId, clusterId);
if (clusterPortMappings == null) {
throw new CloudControllerException(
String.format(
"Cluster port mappings not found: " + "[application-id] %s [cluster-id] %s",
applicationId, clusterId));
}
ClusterPortMapping clusterPortMapping =
findClusterPortMapping(clusterPortMappings, portMapping);
if (clusterPortMappings == null) {
throw new CloudControllerException(
String.format(
"Cluster port mapping not found: "
+ "[application-id] %s [cluster-id] %s [transport] %s",
applicationId, clusterId, portMapping.getName()));
}
if (clusterPortMapping.getKubernetesServiceType() == null) {
throw new CloudControllerException(
String.format(
"Kubernetes service type not "
+ "found [application-id] %s [cluster-id] %s [cartridge] %s",
applicationId, clusterId, cartridge));
}
String serviceType = portMapping.getKubernetesPortType();
clusterPortMapping.setKubernetesServiceType(serviceType);
// If kubernetes service port is already set, skip setting a new one
if (clusterPortMapping.getKubernetesServicePort() == 0) {
if (serviceType.equals(KubernetesConstants.NODE_PORT)) {
int nextServicePort = kubernetesClusterContext.getNextServicePort();
if (nextServicePort == -1) {
throw new RuntimeException(
String.format(
"Could not generate service port: [cluster-id] %s " + "[port] %d",
clusterId, portMapping.getPort()));
}
clusterPortMapping.setKubernetesServicePort(nextServicePort);
} else {
clusterPortMapping.setKubernetesServicePort(portMapping.getPort());
}
} else {
if (log.isDebugEnabled()) {
log.debug(
String.format(
"Kubernetes service port is already set: [application-id] %s "
+ "[cluster-id] %s [port] %d [service-port] %d",
applicationId,
clusterId,
clusterPortMapping.getPort(),
clusterPortMapping.getKubernetesServicePort()));
}
}
// Add port mappings to payload
if (portMappingStrBuilder.toString().length() > 0) {
portMappingStrBuilder.append(";");
}
portMappingStrBuilder.append(
String.format(
"NAME:%s|PROTOCOL:%s|PORT:%d|PROXY_PORT:%d",
clusterPortMapping.getName(),
clusterPortMapping.getProtocol(),
clusterPortMapping.getKubernetesServicePort(),
clusterPortMapping.getProxyPort()));
if (log.isInfoEnabled()) {
log.info(
String.format(
"Kubernetes service port generated: [application-id] %s "
+ "[cluster-id] %s [port] %d [service-port] %d",
applicationId,
clusterId,
clusterPortMapping.getPort(),
clusterPortMapping.getKubernetesServicePort()));
}
}
NameValuePair nameValuePair =
new NameValuePair(PORT_MAPPINGS, portMappingStrBuilder.toString());
payload.add(nameValuePair);
// Persist service ports added to cluster port mappings
CloudControllerContext.getInstance().persist();
}
}
}
/**
* Creates and returns proxy services for the cluster.
*
* @param kubernetesApi
* @param clusterContext
* @param kubernetesCluster
* @param kubernetesClusterContext
* @throws KubernetesClientException
*/
private void createKubernetesServices(
KubernetesApiClient kubernetesApi,
ClusterContext clusterContext,
KubernetesCluster kubernetesCluster,
KubernetesClusterContext kubernetesClusterContext)
throws KubernetesClientException {
String clusterId = clusterContext.getClusterId();
String cartridgeType = clusterContext.getCartridgeUuid();
Cartridge cartridge = CloudControllerContext.getInstance().getCartridge(cartridgeType);
if (cartridge == null) {
String message =
"Could not create kubernetes services, cartridge not found: [cartridge] " + cartridgeType;
log.error(message);
throw new RuntimeException(message);
}
String sessionAffinity = null;
Property sessionAffinityProperty =
cartridge.getProperties().getProperty(KUBERNETES_SERVICE_SESSION_AFFINITY);
if (sessionAffinityProperty != null) {
sessionAffinity = sessionAffinityProperty.getValue();
}
List<KubernetesService> kubernetesServices = clusterContext.getKubernetesServices();
if (kubernetesServices == null) {
kubernetesServices = new ArrayList<KubernetesService>();
}
// Prepare minion public IP addresses
List<String> minionPrivateIPList = new ArrayList<String>();
List<String> minionPublicIPList = new ArrayList<String>();
KubernetesHost[] kubernetesHosts = kubernetesCluster.getKubernetesHosts();
if ((kubernetesHosts == null)
|| (kubernetesHosts.length == 0)
|| (kubernetesHosts[0] == null)) {
throw new RuntimeException(
"Hosts not found in kubernetes cluster: [cluster] " + kubernetesCluster.getClusterUuid());
}
for (KubernetesHost host : kubernetesHosts) {
if (host != null) {
minionPrivateIPList.add(host.getPrivateIPAddress());
minionPublicIPList.add(host.getPublicIPAddress());
}
}
if (log.isDebugEnabled()) {
log.debug(String.format("Minion private IPs: %s", minionPrivateIPList));
}
Collection<ClusterPortMapping> clusterPortMappings =
CloudControllerContext.getInstance()
.getClusterPortMappings(clusterContext.getApplicationUuid(), clusterId);
if (clusterPortMappings != null) {
for (ClusterPortMapping clusterPortMapping : clusterPortMappings) {
// Skip if already created
int containerPort = clusterPortMapping.getPort();
if (kubernetesServiceExist(kubernetesServices, containerPort)) {
continue;
}
// Find next service sequence no
long serviceSeqNo = kubernetesClusterContext.getServiceSeqNo().incrementAndGet();
String serviceId =
KubernetesIaasUtil.fixSpecialCharacters("service" + "-" + (serviceSeqNo));
String serviceLabel = DigestUtils.md5Hex(clusterId);
if (log.isInfoEnabled()) {
log.info(
String.format(
"Creating kubernetes service: [cluster] %s [service] %s [service-label] %s "
+ "[protocol] %s [service-port] %d [container-port] %s",
clusterId,
serviceId,
serviceLabel,
clusterPortMapping.getProtocol(),
clusterPortMapping.getKubernetesServicePort(),
containerPort));
}
// Create kubernetes service for port mapping
int servicePort = clusterPortMapping.getKubernetesServicePort();
String serviceType = clusterPortMapping.getKubernetesServiceType();
String containerPortName =
KubernetesIaasUtil.preparePortNameFromPortMapping(clusterPortMapping);
try {
// If kubernetes service is already created, skip creating a new one
if (kubernetesApi.getService(serviceId) == null) {
// Services need to use minions private IP addresses for creating iptable rules
kubernetesApi.createService(
serviceId,
serviceLabel,
servicePort,
serviceType,
containerPortName,
containerPort,
sessionAffinity);
} else {
if (log.isDebugEnabled()) {
log.debug(
String.format(
"Kubernetes service is already created: [cluster] %s [service] %s "
+ "[protocol] %s [service-port] %d [container-port] %d",
clusterId,
serviceId,
clusterPortMapping.getProtocol(),
servicePort,
containerPort));
}
}
} finally {
// Persist kubernetes service sequence no
CloudControllerContext.getInstance().persist();
}
try {
Thread.sleep(1000);
} catch (InterruptedException ignore) {
}
Service service = kubernetesApi.getService(serviceId);
KubernetesService kubernetesService = new KubernetesService();
kubernetesService.setId(service.getMetadata().getName());
kubernetesService.setPortalIP(service.getSpec().getClusterIP());
// Expose minions public IP addresses as they need to be accessed by external networks
String[] minionPublicIPArray =
minionPublicIPList.toArray(new String[minionPublicIPList.size()]);
kubernetesService.setPublicIPs(minionPublicIPArray);
kubernetesService.setProtocol(clusterPortMapping.getProtocol());
kubernetesService.setPortName(clusterPortMapping.getName());
String kubernetesServiceType = service.getSpec().getType();
kubernetesService.setServiceType(kubernetesServiceType);
if (kubernetesServiceType.equals(KubernetesConstants.NODE_PORT)) {
kubernetesService.setPort(service.getSpec().getPorts().get(0).getNodePort());
} else {
kubernetesService.setPort(service.getSpec().getPorts().get(0).getPort());
}
kubernetesService.setContainerPort(containerPort);
kubernetesServices.add(kubernetesService);
if (log.isInfoEnabled()) {
log.info(
String.format(
"Kubernetes service successfully created: [cluster] %s [service] %s "
+ "[protocol] %s [node-port] %d [container-port] %s",
clusterId,
serviceId,
clusterPortMapping.getProtocol(),
servicePort,
containerPort));
}
}
}
// Add kubernetes services to cluster context and persist
clusterContext.setKubernetesServices(kubernetesServices);
CloudControllerContext.getInstance().persist();
}