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Version: 10.2.9

Restore previous version

The guide describes the rollback from v10.2.7 to v10.1.6 or v10.1.4 of the WorkFusion platform (previously Intelligent Automation Cloud Enterprise).

Prerequisites​

  • You have the platform v10.2.7 up and running.
  • No Business Processes are running.
  • SSH access to Linux hosts is enabled.
  • You have the root privileges to assign setcap capabilities to a customer-facing web server (HAProxy) and restore supervisord.service.
note

Currently, only the rollback option for the six-server topology has been validated.

Prepare for Product rollback​

Clean up Marathon workers​

To clean up applications' workers in Marathon, connect to the server with the installation package via SSH and run the following commands as WFUSER:

$ curl -kv -X DELETE -u '<marathon_web_user>:<marathon_web_pass>' https://127.0.0.1:<marathon_port>/v2/groups/ia-cloud?force=true
$ curl -kv -X DELETE -u '<marathon_web_user>:<marathon_web_pass>' https://127.0.0.1:<marathon_port>/v2/groups/worker?force=true

Stop services​

Connect to the server with the installation package via SSH and run the following commands as WFUSER:

$ cd INSTALL_DIR/wf_installer_new
$ export ANSIBLE_PRIVATE_KEY_FILE="<path_to_ssh_key>"   # Path to the SSH key for connection to all Linux servers as WFUSER.
$ export ANSIBLE_REMOTE_USER="WFUSER"                   # Application user specified in config.yml.
$ export ANSIBLE_VAULT_PASS="<ansible_vault_password>"  # Password for decrypting config.yml
$ ./install.sh stop_services full -e skip_bi=true

Clean up rabbitmq queues​

To clean up rabbitmq queues, connect to the server with the installation package via SSH and run the following commands as WFUSER:

$ cd INSTALL_DIR/wf_installer_new
$ export ANSIBLE_PRIVATE_KEY_FILE="<path_to_ssh_key>"   # Path to the SSH key for connection to all Linux servers as WFUSER.
$ export ANSIBLE_REMOTE_USER="WFUSER"                   # Application user specified in config.yml.
$ export ANSIBLE_VAULT_PASS="<ansible_vault_password>"  # Password for decrypting config.yml
$ ./install.sh cleanup_queues rabbitmq

Rollback​

Database​

To roll back the database, on the MSSQL server:

  1. Set the workfusion database offline.

  2. Restore the workfusion database from backup.

Filesystem​

Restore content of the shared network directories if you use any existing NAS.

If using NFS deployed on the platform server, the shared network folders' content is restored automatically during the following operations.

WorkFusion platform​

To restore supervisord.service, connect to the server with the installation package via SSH and run the following commands as <linux_installation_user> (ANSIBLE_REMOTE_USER should have the root priviledges at this time):

$ cd INSTALL_DIR/wf_installer
$ export ANSIBLE_PRIVATE_KEY_FILE="<path_to_ssh_key>"   # Path to SSH key for connection to all Linux servers as WFUSER.
$ export ANSIBLE_REMOTE_USER="WFUSER"                   # Application user specified in config.yml.
$ export ANSIBLE_VAULT_PASS="<ansible_vault_password>"  # Password for decryption of config.yml.
$ ./install.sh preinstall common

To restore the previous platform version, connect to the server with the installation package via SSH and run the following commands as <linux_installation_user>:

$ cd INSTALL_DIR/wf_installer_new
$ export ANSIBLE_PRIVATE_KEY_FILE="<path_to_ssh_key>"   # Path to SSH key for connection to all Linux servers as WFUSER.
$ export ANSIBLE_REMOTE_USER="WFUSER"                   # Application user specified in config.yml.
$ export ANSIBLE_VAULT_PASS="<ansible_vault_password>"  # Password for decryption of config.yml.
$ ./install.sh restore full -e backup_dir=/path/to/backup_dir

To set up a server with the Workfusion service, as a user with the root privileges, enable HAProxy to run under application user on privileged ports (below 1025):

sudo /usr/sbin/setcap CAP_NET_BIND_SERVICE=+eip /opt/workfusion/haproxy/bin/haproxy

Restart servers​

Restart all Linux servers at once and wait for about 10 minutes to stabilize the components' startup and environment.

Rollback RPA​

  1. To rollback the RPA server, uninstall current RPA:

    $ cd INSTALL_DIR/wf_installer_new
    $ ./install.sh uninstall rpa

  2. Perform a clean installation of the RPA v.10.1.4 or v.10.1.6 from the directory with previous installation package:

    $ cd INSTALL_DIR/wf_installer
    $ ./install.sh preinstall rpa
    $ ./install.sh install rpa
    $ ./install.sh check rpa

Check rollback​

Once the rollback is completed, check the WorkFusion Platform with Business Process (BP) and Manual Task.

After the rollback, you can remove the directory with the new installation package INSTALL_DIR/wf_installer_new.