250 lines
12 KiB
Plaintext
250 lines
12 KiB
Plaintext
---
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layout: docs
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page_title: Upgrading to 1.10.0
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description: >-
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Specific versions of Consul may have additional information about the upgrade
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process beyond the standard flow.
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---
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# Upgrading to 1.10.0
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<EnterpriseAlert />
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## Introduction
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This guide explains how to best upgrade a single Consul Enterprise datacenter to v1.10.0
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from a version of Consul that is forward compatible with v1.10. If you are on a major
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version of Consul prior to 1.8, you will need to complete and [upgrade to 1.8.13](/docs/upgrading/instructions)
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or higher before continuing with this guide. If you are already on a major version of 1.8 or 1.9, then
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this guide will go over the procedures required for upgrading to v1.10. This process
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will require intermediate version upgrades to a forward-compatible release of v1.8 or v1.9,
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as well as other licensing related configuration changes. If you have multiple Consul datacenters,
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upgrade them in the normal order and take the following instructions into account for each upgrade.
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For the open source version of Consul please follow the
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[General Upgrade Process](/docs/upgrading/instructions/general-process).
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~> You can only upgrade to Consul Enterprise 1.10 from a version of Consul Enterprise
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1.8 >= 1.8.13 or 1.9 >= 1.9.7. Other versions of Consul Enterprise are not forward
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compatible with v1.10 and will cause issues during the upgrade that could result in
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agents failing to start due to [changes in the way we manage licenses](/docs/enterprise/license/faq).
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## Requirements
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- All Consul servers, clients, and snapshot agents should be on a version of Consul >= 1.8.0 and < 1.10.0. If
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they are not at the minimum version or higher, follow the [normal upgrade procedures](/docs/upgrading) to upgrade them until the version requirement is met.
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## Assumptions
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This guides makes the following assumptions:
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- You are familiar with the [General Upgrade Process](/docs/upgrading/instructions/general-process).
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- You have the ability to run Consul CLI commands.
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- If ACLs are in use, then you possess a token with at least `operator:read` permissions.
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## Considerations
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The licensing changes outlined on the [Specific Version Details](/docs/upgrading/upgrade-specific#consul-1-10-0)
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page are the main breaking changes in Consul Enterprise 1.10 that require special handling during the upgrade process.
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The page also describes other changes that might cause issues during an upgrade.
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You can also review the [licensing FAQ](/docs/enterprise/license/faq), which includes granular details, as well as the full
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[changelog](https://github.com/hashicorp/consul/blob/main/CHANGELOG.md#1100-june-22-2021).
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We strongly recommend reviewing the changes prior to upgrading.
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## Procedures
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~> Any steps in the following section that mention upgrading servers/clients assume that normal safe upgrade
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procedures are followed. Licensing-related configuration changes are required for upgrading to 1.10.
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Intermediate version upgrades are also required to ensure forward compatibility.
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Refer to our documentation for the [basic server upgrade process](/docs/upgrading/instructions/general-process),
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and for [autopilot assisted upgrades](https://learn.hashicorp.com/tutorials/consul/upgrade-automation)
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for more information.
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**1.** Retrieve the datacenter's current license by executing the following CLI command:
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```shell
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consul license get -signed > consul.hclic
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```
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Note that you can run the command from anywhere Consul is already running or from a location that has network access to the cluster.
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Additional command line options for directing the request to the correct Consul API may be necessary if the command runs from another location.
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This will save the license to a file in the local directory named `consul.hclic`. Having this
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will be useful when preparing the license for the 1.10 upgrades later on in the process.
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**2.** Take a snapshot of the cluster by running the following command:
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```shell
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consul snapshot save original.snap
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```
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Note that you can run the command from anywhere Consul is already running or from a location that has network access to the cluster.
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Additional command line options for directing the request to the correct Consul API may be necessary if the command runs from another location.
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Note that you will need to ensure that there is enough disk space in the current directory
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to store the snapshot. In the worst case, the snapshot size could be close to the amount
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of RAM the Consul server processes are consuming.
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This snapshot should not be needed, but if something were to go wrong, having
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the snapshot would make it possible to restore the previous state.
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**3.** Determine if ACLs are enabled by running the following CLI command.
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```shell
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consul info | grep "acl ="
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```
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If you receive output like either of the following, then ACLs are enabled:
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```text
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Error querying agent: Unexpected response code: 403 (Permission denied)
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```
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```text
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acl = enabled
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```
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Select the correct tab below based on whether ACLs are enabled or disabled or if you
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are operating Consul within Kubernetes.
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<Tabs>
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<Tab heading="ACLs Enabled">
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**4.** Upgrade all server agents to the latest 1.8.x or 1.9.x release.
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**5.** Upgrade all client agents to the latest 1.8.x or 1.9.x release.
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**6.** Upgrade all [snapshot agents](/docs/commands/snapshot/agent) to the latest 1.8.x or 1.9.x release.
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**7.** Take a snapshot of the upgraded cluster by running the following command:
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```shell
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consul snapshot save intermediate.snap
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```
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Note that you can run the command from anywhere Consul is already running or from a location that has network access to the cluster.
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If run elsewhere, [additional command line options](/docs/commands/snapshot/save#api-options) may be needed to direct the request to the right Consul API.
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Note that you will need to ensure there is enough disk space in the current directory
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to store the snapshot. In the worst case, the snapshot size could be close to the amount
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of RAM the Consul server processes are consuming.
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This snapshot should not be needed, but if something were to go wrong, having
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the snapshot would make it possible to restore the previous state.
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**8.** Pre-configure the server agents with a license.
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This can either be set with the `license_path` configuration item, the
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`CONSUL_LICENSE_PATH` environment variable, or the `CONSUL_LICENSE`
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environment variable. See the [licensing documentation](/docs/enterprise/license/overview)
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for more information about how to configure the license.
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You can also refer to the [Apply Enterprise License](https://learn.hashicorp.com/tutorials/consul/deployment-guide#apply-enterprise-license) tutorial for additional information.
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**9.** Upgrade all server agents to v1.10.0.
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**10.** Upgrade all client agents to v1.10.0.
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**11.** Upgrade all [snapshot agents](/docs/commands/snapshot/agent) to v1.10.0.
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</Tab>
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<Tab heading="ACLs Disabled">
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~> We do not recommend running in production with ACLs disabled. An alternative upgrade
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path involves first enabling ACLs by following [this tutorial](https://learn.hashicorp.com/tutorials/consul/access-control-setup-production)
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and then proceeding with the instructions within the "ACLs Enabled" tab.
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**4.** Upgrade all server agents to the latest 1.8.x or 1.9.x release.
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**5.** Pre-configure the client agents with a license.
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This can either be set with the `license_path` configuration item, the
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`CONSUL_LICENSE_PATH` environment variable, or the `CONSUL_LICENSE`
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environment variable. See the [licensing documentation](/docs/enterprise/license/overview)
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for more information about how to configure the license.
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You can also refer to the [Apply Enterprise License](https://learn.hashicorp.com/tutorials/consul/deployment-guide#apply-enterprise-license) tutorial for additional information.
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Note that while Consul Enterprise 1.8.13 and 1.9.7 have the ability to load the license
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from these configurations, it is intended to only be used during upgrades.
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Licenses loaded this way are not online reloadable. It is therefore important
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to promptly proceed with the upgrade and not leave agents in the intermediate state.
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**6.** Upgrade all client agents to the latest 1.8.x or 1.9.x release.
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**7.** Pre-configure the snapshot agents with a license. This is the same process that
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was executed for the servers in step 5.
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**8.** Upgrade all [snapshot agents](/docs/commands/snapshot/agent) to the latest 1.8.x or 1.9.x release.
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**9.** Take a snapshot of the upgraded cluster by running the following command:
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```shell
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consul snapshot save intermediate.snap
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```
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Note that you can run the command from anywhere Consul is already running or from a location that has network access to the cluster.
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Additional command line options for directing the request to the correct Consul API may be necessary if the command runs from another location.
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Note that you will need to ensure there is enough disk space in the current directory
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to store the snapshot. In the worst case, the snapshot size could be close to the amount
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of RAM the Consul server processes are consuming.
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This snapshot should not be needed but if something were to go wrong, having
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the snapshot would make it possible to restore the previous state.
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**10.** Pre-configure the server agents with a license. This is the same process that
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was executed for the servers in step 5.
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**11.** Upgrade all server agents to v1.10.0.
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**12.** Upgrade all client agents to v1.10.0.
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**13.** Upgrade all [snapshot agents](/docs/commands/snapshot/agent) to v1.10.0.
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</Tab>
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<Tab heading="Kubernetes">
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**4.** **If** the Consul servers are running outside the Kubernetes cluster, ensure they are upgraded
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to the latest 1.8.x or 1.9.x before the next steps. Otherwise, this step can be skipped.
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**5.** Upgrade to the latest Consul helm chart v0.32.0+.
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**6.** Update the value of `global.image` in the values file to the latest 1.8.x or 1.9.x image.
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Additionally, ensure that the Kuberenetes secret with the license is specified in the
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values `server.enterpriseLicense.secretName` and `server.enterpriseLicense.secretKey`.
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**7.** Upgrade the cluster.
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Follow the steps in the [Kubernetes Upgrade Guide](/docs/k8s/upgrade#upgrade-consul-on-kubernetes)
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to upgrade the cluster. Ensure you check the steps to upgrade the [servers](/docs/k8s/upgrade#upgrading-consul-servers)
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and the [clients](/docs/k8s/upgrade#upgrading-consul-clients).
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**8.** **If** the Consul servers are running outside the Kubernetes cluster, ensure they are upgraded
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to 1.10.0 before the next steps. Otherwise, this step can be skipped.
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This will require pre-configuring the servers with a license
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before running 1.10. This can either be set with the `license_path` configuration item, the
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`CONSUL_LICENSE_PATH` environment variable or the `CONSUL_LICENSE`
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environment variable. See the [licensing documentation](/docs/enterprise/license/overview)
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for more information about how to configure the license.
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You can also refer to the [Apply Enterprise License](https://learn.hashicorp.com/tutorials/consul/deployment-guide#apply-enterprise-license) tutorial for additional information.
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Note that while Consul Enterprise 1.8.13 and 1.9.7 have the ability to load the license
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from these configurations, it is intended to only be used during upgrades.
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Licenses loaded this way are not online reloadable. It is therefore important
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to promptly proceed with the upgrade and not leave agents in the intermediate state.
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**9.** Update the value of `global.image` in the values file to the 1.10.0 image.
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**10.** Upgrade the cluster.
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Follow the steps in the [Kubernetes Upgrade Guide](/docs/k8s/upgrade#upgrade-consul-on-kubernetes)
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to then upgrade the cluster. Ensure you check the steps to upgrade the [servers](/docs/k8s/upgrade#upgrading-consul-servers)
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and the [clients](/docs/k8s/upgrade#upgrading-consul-clients).
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</Tab>
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</Tabs>
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## Post-Upgrade Configuration Changes
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No configuration changes are required for this upgrade.
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