Upgrade from a previous version¶
Overview¶
This page explains how to upgrade SaltStack Enterprise to the latest stable version from a previous version. These upgrade instructions cover an upgrade from SaltStack Enterprise version 6.3.0 to version 6.4.0.
To upgrade SaltStack Enterprise, you will need to:
- Back up your data, including certain files and directories that are crucial to your specific installation of SaltStack Enterprise
- Upgrade PostgreSQL (optional, but recommended)
- Upgrade your Salt infrastructure (optional, but recommended)
- Download the upgrade files
- Upgrade the Enterprise API (RaaS) node
- Upgrade any Salt Masters using the Master Plugin
This page explains how to complete each of these steps in more detail.
Warning
If you are upgrading your SaltStack Enterprise installation, refer to the following upgrade instructions. Do not attempt to install using the automated installer (single-node or multi-node) or manual installation instructions.
Upgrading versions earlier than 6.3.0¶
As a best practice, always upgrade from the latest major version of SaltStack Enterprise to the new release. If you are upgrading from a version earlier than 6.3.0, you might see the best results if you upgrade in increments from one major release to the next.
For instructions on upgrading to earlier SaltStack Enterprise versions, see the specific upgrade instructions for the releases you are upgrading from. The upgrade instructions for previous releases are included in the installation guide PDF for the subsequent release. For example, if you need to upgrade from 5.5 to 6.0, see the upgrade instructions in the 6.0 installation PDF.
Version | Installation and Upgrade Guide PDF |
---|---|
6.4 | 6.4 Installation and Upgrade Guide |
6.3 | 6.3 Installation and Upgrade Guide |
6.2 | 6.2 Installation and Upgrade Guide |
6.1 | 6.1 Installation and Upgrade Guide |
6.0.1 | 6.0.1 Installation and Upgrade Guide |
6.0 | 6.0.0 Installation and Upgrade Guide |
5.5.1 | 5.5.1 Installation and Upgrade Guide |
Best practices when upgrading¶
When preparing to perform an upgrade of SaltStack Enterprise, the following recommendations could be helpful:
- Back up your data. In order to prevent data loss, back up your data. For an explanation of which files and directories must be backed up before upgrading, see Back up your data.
- Perform upgrades during hours of slow network activity. Database upgrades require re-indexing data. Depending on the complexity of your data, a database upgrade could potentially take several hours. To prevent service disruptions, consider upgrading the database during slower business hours or trimming your database prior to an upgrade.
- Check the database for any old commands being stored. In some cases, the PostgreSQL database stores old commands that haven’t run. These commands might run during the upgrade process, when you restart the Salt Master plugin. To prevent this from happening, check whether any old commands are stored in the database, and enable skipping jobs that are older than a defined time.
- Test the upgrade before deploying. If possible, you could try running a dress rehearsal in a test environment to get a sense of how long the upgrade could take.
- Read through the whole guide first. Consider also reading through this entire guide one time before you implement an upgrade so that you have a good sense of the tasks that are required and whether they require planning from your team or if stakeholders must be notified of pending changes.
Back up your data¶
Before upgrading SaltStack Enterprise, you should always back up your data. The following sections explain which data needs to be backed up so that it can be restored after you complete the upgrade process.
Back up SaltStack Enterprise files and directories¶
The following files and directories contain your custom SaltStack Enterprise configurations and need to be backed up before upgrading:
On the Enterprise API (RaaS) node, back up these entire directories:
/etc/raas/raas
/etc/raas/raas.secconf
/var/log/raas
/etc/raas/pki/
Note
The
pki
directory contains hidden files, so ensure you back up the entire directory.Backing up the log files in the
/var/log/raas
directory is optional. During the upgrade process, you’ll clear the log files to provide a clean log file if troubleshooting is necessary.On each Salt Master, back up the
/etc/salt/master.d/raas.conf
and/etc/salt/master.d/eAPIMasterPaths.conf
files.Note
Depending on how you initially installed SaltStack Enterprise, the eAPI Master paths could instead be in the
/etc/salt/master.d/raas.conf
file instead.
After backing up the SaltStack Enterprise and Salt Master files, proceed to the next section.
Back up your database schema¶
When upgrading your Enterprise API (RaaS) node, the database schema is updated. For that reason, ensure you create a backup of your database before the upgrade.
To back up your database you need to first look up your PostgreSQL database name and then copy the contents:
On the PostgreSQL server, back up these files:
postgres.conf
pg_hba.conf
Log in as the
postgres
user using the following command:sudo su - postgres
Get your database name, using the following commands to enter PostgreSQL and then list the databases:
psql \l
To exit PostgreSQL and log out as the
postgres
user, press Ctrl+D and then run the following command:exit
Copy database contents to a file. The following command gives an example:
pg_dump -U salt_eapi raas_db_name > postgres_raas_backup_$(date +%Y-%m-%d).sql
Your database files are now backed up. For the latest information about performing backups, see PostgreSQL database backups.
Upgrade PostgreSQL database¶
SaltStack Enterprise requires a PostgreSQL 9.6 database, but PostgreSQL 12.4 is recommended. The recommended version of PostgreSQL is included with the SaltStack Enterprise installer.
Upgrading to the latest version of PostgreSQL is not required. However, upgrading PostgreSQL can possibly improve performance. For instructions on upgrading to the latest version of PostgreSQL, see PostgreSQL upgrade.
Upgrade Salt¶
For best performance, ensure your Salt components are running on the latest major version of Salt. For instructions on upgrading your Salt Masters and other Salt components, see Upgrading Your Salt Infrastructure.
For instructions on upgrading the Salt Crystal package, see How to Upgrade Salt Crystal.
Download upgrade files¶
To download the files for upgrading:
- On the Downloads page, go to the Upgrade 6.3.0 to 6.4.0 requirements section.
- Download all files listed needed for upgrading.
- Verify the files. For specific instructions, see Verify the installation files.
After you’ve downloaded the files, proceed to the next section.
Upgrade the Enterprise API (RaaS) node¶
This section explains how to upgrade the Enterprise API (RaaS) node from 6.3.0 to version 6.4.0. Be aware that database upgrades require re-indexing data. If your data is complex, a database upgrade could potentially take several hours. For a discussion of when to plan an upgrade and other tips, see Best practices when upgrading.
Warning
Before upgrading your Enterprise API (RaaS) node, you must back up your system data to avoid data loss. For an explanation of which files and directories must be backed up before upgrading, see Back up your data.
To upgrade the Enterprise API (RaaS) node:
Save any changes you made to the default file system, pillar data, and jobs as new files or jobs.
Note any pillar assignments that are made to the default targets. These need to be re-assigned after upgrade.
Stop the RaaS service using the following command:
sudo systemctl stop raas
Remove the log file(s) in the
/var/log/raas
directory. Clearing the log files provides a clean log file if troubleshooting is necessary.Remove the currently installed version of the Enterprise API with the following command:
sudo yum remove raas
Upgrade the Enterprise API (RaaS) node by installing the latest RPM. Use the following example command, replacing the exact file name of the RPM:
sudo yum install raas-rpm-file-name.rpm
IMPORTANT: Restore the backup of the following files:
/etc/raas/raas
/etc/raas/raas.secconf
/etc/raas/pki/
Update permissions for the
raas
user with the following command:sudo chown -R raas:raas /etc/pki/raas/certs
OPTIONAL: If you have a SaltStack Comply license, add the following new section to the
/etc/raas/raas
file:sec: ingest_override: true locke_dir: locke post_ingest_cleanup: true username: 'secops' content_url: 'https://enterprise.saltstack.com/secops_downloads' download_enabled: true download_frequency: 86400 stats_snapshot_interval: 3600 compile_stats_interval: 10 ingest_on_boot: True content_lock_timeout: 60 content_lock_block_timeout: 120
Note
This step is optional and only applies to organizations that have a valid SaltStack Comply and/or SaltStack Protect license. These add-on modules are available for SaltStack Enterprise versions 6.0 and later. The previous configuration options in the
/etc/raas/raas
configuration file are specific to these add-on modules.OPTIONAL: If you have a SaltStack Protect license , add a new section to the
/etc/raas/raas
file:vman: vman_dir: vman download_enabled: true download_frequency: 86400 username: vman content_url: 'https://enterprise.saltstack.com/vman_downloads' ingest_on_boot: true compile_stats_interval: 60 stats_snapshot_interval: 3600 old_policy_file_lifespan: 2 delete_old_policy_files_interval: 86400 tenable_asset_import_enabled: True tenable_asset_import_grains: ['fqdn', 'ipv4', 'ipv6', 'hostname', 'mac_address', 'netbios_name', 'bios_uuid', 'manufacturer_tpm_id', 'ssh_fingerprint', 'mcafee_epo_guid', 'mcafee_epo_agent_guid', 'symantec_ep_hardware_key', 'qualys_asset_id', 'qualys_host_id', 'servicenow_sys_id', 'gcp_project_id', 'gcp_zone', 'gcp_instance_id', 'azure_vm_id', 'azure_resource_id', 'aws_availability_zone', 'aws_ec2_instance_ami_id', 'aws_ec2_instance_group_name', 'aws_ec2_instance_state_name', 'aws_ec2_instance_type', 'aws_ec2_name', 'aws_ec2_product_code', 'aws_owner_id', 'aws_region', 'aws_subnet_id', 'aws_vpc_id', 'installed_software', 'bigfix_asset_id' ]
Note
This step is optional and only applies to organizations that have a valid SaltStack Protect license. This add-on module is available for SaltStack Enterprise versions 6.0 and later. The previous configuration options in the
/etc/raas/raas
configuration file are specific to these add-on modules.The Enterprise API (RaaS) currently has a known issue related to stale jobs. (See Known issues for more information.) When upgrading, some users might notice a queue of stale jobs that are stuck in a pending state. Upgrading the Enterprise API (RaaS) node can cause these jobs to run unless they are first cleared out.
To prevent this from happening, first check whether any old commands are stored in the database. On your PostgreSQL node, check for any pending jobs using the following command:
select count(1) from commands where state = 'new';
The result is the number of pending jobs. If the number of jobs is
0
, proceed with the rest of the upgrade process. If the number of jobs is greater than0
, Contact Support for a workaround.Upgrade the RaaS service database using the following command:
sudo su - raas raas upgrade
Note
Depending on the size of your database, the upgrade can take anywhere from several minutes to over an hour.
If you encounter errors, check the
/var/log/raas/raas
logfile for more information.After the upgrade, exit the session for the
raas
user with the following command:exit
Start the RaaS service using the following command:
sudo systemctl enable raas sudo systemctl start raas
Verify that SaltStack Enterprise is functioning correctly and is running the latest version. Proceed to the next section.
Upgrade Salt Masters with the Salt Master plugin¶
After you have successfully upgraded the Enterprise API (RaaS) node, you can then upgrade any Salt Masters that use the Salt Master plugin to connect to SaltStack Enterprise.
Note
Before you upgrade the Salt Masters, ensure that the pip3 application is installed on the Salt Masters. If you are upgrading from the latest version of the Salt Master plugin, this application is already installed.
To upgrade the Salt Master plugin on a Salt Master:
Stop the
salt-master
service using the following command:sudo systemctl stop salt-master
Check which version of Python is running on the Salt Master. If it is running Python 3.6 or higher, no changes are needed. Otherwise, delete the prior version of the SSEAPE module. (The SSEAPE is the SaltStack Enterprise plugin for the Salt Master). For example:
sudo rm -rf /usr/lib/python3.6/site-packages/SSEAPE*
sudo rm /usr/lib/python3.6/dist-packages/SSEAPE*
Upgrade the Salt Master plugin by manually installing the updated Python wheel. Use the following example commands, replacing the exact name of the wheel file:
sudo pip3 install SSEAPE-file-name.whl --prefix /usr
sudo pip3 install SSEAPE-file-name.whl
Note
Some users might need to alter the syntax to
pip3.6
orpip36
for their operating systems.Update the Enterprise API module paths by editing the
/etc/salt/master.d/eAPIMasterPaths.conf
file to reference the paths to the various modules. For example, you might change allpython2.7
references in this file topython3.6
.Note
Depending on how you initially installed SaltStack Enterprise, the eAPI Master paths could instead be in the
/etc/salt/master.d/raas.conf
file instead.Check the
engines
section in/etc/salt/master.d/raas.conf
to confirm that it matches the following:engines: - sseapi: {} - eventqueue: {} - rpcqueue: {} - jobcompletion: {}
Note
If a problem occurred, you may need to restore your backups of the
/etc/salt/master.d/raas.conf
and/etc/salt/master.d/eAPIMasterPaths.conf
files.Start the
salt-master
service with the following command:sudo systemctl start salt-master
The upgrade process is now complete. If you encounter any other errors, refer to the Troubleshooting page or Contact Support.