net.leanix.dropkit.util

Class DeploymentUtil

java.lang.Object

net.leanix.dropkit.util.DeploymentUtil

public class DeploymentUtil
extends Object

Helper class to detect the deployment color and if current instance is active or not. The logic to detect if instance is active or inactive is based on the configuration in etcd under key /vhosts/local-svc.leanix.net/deploy_current or /vhosts/local-eam.leanix.net/deploy_current. In oder to use this class you have to specify:

 * ETCD_SERVER    : the etcd server, e.g. '192.168.59.103:4001'  
 * CONTAINER_COLOR: 'green', 'blue' or 'white'
 * VIRTUAL_HOST   : the virtual host name e.g. 'local-eam.leanix.net' (default: local-svc.leanix.net)
 

Author:

ralfwehner

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONTAINER_COLOR
static String	ETCD_SERVER
static String	VIRTUAL_HOST

Constructor Summary

Constructors

Constructor and Description
DeploymentUtil()
DeploymentUtil(MinimalEtcdClientFactory etcdClientFactory)

Method Summary

Modifier and Type	Method and Description
String	buildKeyForVirtualHost(String key)
void	deleteEtcdKey(String key, boolean recursive)
boolean	deleteEtcdKeyIfNeeded(String key, boolean recursive)
DeploymentColor	getContainerColor() Returns current container color if set.
DeploymentColor	getContainerColorOrDefault(DeploymentColor defaultColor) Returns current color or defaultColor if not set.
MinimalEtcdClient	getEtcdClient()
String	getVirtualHost()
boolean	isEtcdConfigured()
boolean	isInstanceCurrentlyActive()
List<String>	listEtcdKey(String key)
String	retrieveEtcdValue(String key)
void	writeEtcdValue(String key, String value)
boolean	writeEtcdValueIfNeeded(String key, String value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VIRTUAL_HOST

public static final String VIRTUAL_HOST

See Also:

Constant Field Values

CONTAINER_COLOR

public static final String CONTAINER_COLOR

See Also:

Constant Field Values

ETCD_SERVER

public static final String ETCD_SERVER

See Also:

Constant Field Values

Constructor Detail

DeploymentUtil

public DeploymentUtil(MinimalEtcdClientFactory etcdClientFactory)

DeploymentUtil

public DeploymentUtil()

Method Detail

getContainerColor

public DeploymentColor getContainerColor()

Returns current container color if set.

Returns:

container color if env variable CONTAINER_COLOR is defined, otherwise null

getContainerColorOrDefault

public DeploymentColor getContainerColorOrDefault(DeploymentColor defaultColor)

Returns current color or defaultColor if not set.

Parameters:

defaultColor -

Returns:

container color if env variable CONTAINER_COLOR is defined, otherwise defaultColor

isInstanceCurrentlyActive

public boolean isInstanceCurrentlyActive()

retrieveEtcdValue

public String retrieveEtcdValue(String key)
                         throws EtcdException

Throws:

EtcdException

writeEtcdValue

public void writeEtcdValue(String key,
                           String value)
                    throws EtcdException

Throws:

EtcdException

writeEtcdValueIfNeeded

public boolean writeEtcdValueIfNeeded(String key,
                                      String value)
                               throws EtcdException

Throws:

EtcdException

listEtcdKey

public List<String> listEtcdKey(String key)
                         throws EtcdException

Throws:

EtcdException

deleteEtcdKey

public void deleteEtcdKey(String key,
                          boolean recursive)
                   throws EtcdException

Throws:

EtcdException

deleteEtcdKeyIfNeeded

public boolean deleteEtcdKeyIfNeeded(String key,
                                     boolean recursive)
                              throws EtcdException

Throws:

EtcdException

getVirtualHost

public String getVirtualHost()

buildKeyForVirtualHost

public String buildKeyForVirtualHost(String key)

getEtcdClient

public MinimalEtcdClient getEtcdClient()

isEtcdConfigured

public boolean isEtcdConfigured()