Upgrade Remote Services servers to v5.2

These steps are for Remote Services servers in a distributed or HA environment.

Upgrade EVERY Remote Services server with these steps.

1. On the Remote Services servers, upgrade Abiquo to 5.2.x

   yum update

   Before you confirm, check the following packages will be installed from the abiquo-base repository:

   1. jdk: 11.0.6u10
   2. redis: 5.0.7.1

2. After the update, check versions of Java and Tomcat

    Click here to show/hide steps to check versions

   Check that the symbolic link to the latest version of Java points to Java 11

   # cd /usr/java
   # ll
   latest -> /usr/java/jdk-11.0.6+10

   Check that the correct Tomcat version will be used

   # cd /opt/abiquo/tomcat/bin
   # sh version.sh
   Using CATALINA_BASE:   /opt/abiquo/tomcat
   Using CATALINA_HOME:   /opt/abiquo/tomcat
   Using CATALINA_TMPDIR: /opt/abiquo/tomcat/temp
   Using JRE_HOME:        /usr
   Using CLASSPATH:       /opt/abiquo/tomcat/bin/bootstrap.jar:/opt/abiquo/tomcat/bin/tomcat-juli.jar
   NOTE: Picked up JDK_JAVA_OPTIONS:  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
   Server version: Apache Tomcat/9.0.33
   Server built:   Mar 11 2020 09:31:38 UTC
   Server number:  9.0.33.0
   OS Name:        Linux
   OS Version:     3.10.0-1160.15.2.el7.x86_64
   Architecture:   amd64
   JVM Version:    11.0.6+10
   JVM Vendor:     AdoptOpenJDK

   On the Remote Services server in the JDK folder, check certificate migration to allow AM download

   The API Server certificate should be listed for Java 11 with its FQDN. You may need to enter the storepass option to supply the password and you can use the alias option to search for the hostname or FQDN of your server

   # cd /usr/java/jdk-11.0.6+10/lib/security
   # keytool -list -keystore cacerts -alias (hostname or fqdn)

   For example

   sudo keytool -list -keystore cacerts -alias abiquo.example.com

3. On all Remote Services servers using SSL

   Edit the tomcat server configuration file:

   /opt/abiquo/tomcat/conf/server.xml

   Find the location of the certificate files for Java 8

   keystoreFile="/usr/java/default/jre/lib/security/cacerts"

   Change it to the location for Java 11 (e.g. remove "/jre")

   keystoreFile="/usr/java/default/lib/security/cacerts" 

4. On all Remote Services servers, change file owners to tomcat user

   chown -R tomcat /opt/abiquo

5. On the Remote Services with Appliance Manager and the V2V Server (i.e. servers that mount the NFS repository), change file owners to tomcat user

   chown -R tomcat /opt/vm_repository
   chmod -R a+r /opt/vm_repository