The following diagram provides an architectural overview of an on-premises installation of enterprise edition Pipelines for Applications.
An on-premises installation is made up of the following four layers:
This layer includes:
This layer provides access for the Pipelines for Applications services’ inbound and outbound communications. It can also be used to provide security.
The ingress and egress layer includes three load balancers, one for each Pipelines service endpoint. DNS entries for each endpoint are required, such as the following examples:
This layer includes the Pipelines for Applications containers. In a typical installation of this type, two or more containers are used to provide high availability (HA) and redundancy. The diagram above shows three containers in use on this layer.
Each container runs all three Pipelines for Applications services:
These services must be able to:
If your installation includes both Pipelines for Applications and Pipelines for Containers, be aware that these products each run in separate, standalone containers.
The ongoing availability of the persistence layer is most critical to your installation. The three other layers can be replaced, rebuilt, or exchanged without disturbing the persistence layer. You can hot-swap the containers in the Pipelines services layer without impacting end users, so long as the persistence layer is available and uncompromised.
The persistence layer includes:
The following table provides upgrade paths for the on-premises installation of enterprise edition Pipelines for Applications.
Note: Beginning in April 2019, enterprise edition Puppet Pipelines is delivered as a single container, containing the enterprise editions of Pipelines for Applications and Pipelines for Containers.
|Starting version||Upgrade path|
|4.2.0||4.2.0 > 4.2.2|
|4.1.0||4.1.0 > 4.2.0 > 4.2.2|
|4.0.0||4.0.0 > 4.1.0 > 4.2.0 > 4.2.2|
|3.4.2||3.4.2 > 4.0.0 > 4.1.0 > 4.2.0 > 4.2.2|
|3.4.0||3.4.0 > 3.4.2 > 4.0.0 > 4.1.0 > 4.2.0 > 4.2.2|
|3.3.3||3.3.3 > 3.4.0 > 3.4.2 > 4.0.0 > 4.1.0 > 4.2.0 > 4.2.2|
|2.1.05||2.1.05 > 3.3.3 > 3.4.0 > 3.4.2 > 4.0.0 > 4.1.0 > 4.2.0 > 4.2.2|
|2.1.02||2.1.02 > 2.1.05 > 3.3.3 > 3.4.0 > 3.4.2 > 4.0.0 > 4.1.0 > 4.2.0 > 4.2.2|
|2.1.01||2.1.01 > 2.1.02 > 2.1.05 > 3.3.3 > 3.4.0 > 3.4.2 > 4.0.0 > 4.1.0 > 4.2.0 > 4.2.2|