41 lines
1.9 KiB
Markdown
41 lines
1.9 KiB
Markdown
# Installation Guide
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- [Installation Guide](#installation-guide)
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- [Ambassador](#ambassador)
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- [Ambassador Operator](#ambassador-operator)
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- [Configuration](#configuration)
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- [Ingress annotations](#ingress-annotations)
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## Ambassador
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The Ambassador API Gateway provides all the functionality of a traditional ingress controller
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(e.g., path-based routing) while exposing many additional capabilities such as authentication,
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URL rewriting, CORS, rate limiting, and automatic metrics collection.
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## Ambassador Operator
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This addon deploys the Ambassador Operator, which in turn will install Ambassador in
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a kubespray cluster.
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The Ambassador Operator is a Kubernetes Operator that controls Ambassador's complete lifecycle
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in your cluster, automating many of the repeatable tasks you would otherwise have to perform
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yourself. Once installed, the Operator will complete installations and seamlessly upgrade to new
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versions of Ambassador as they become available.
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## Configuration
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- `ingress_ambassador_namespace` (default `ambassador`): namespace for installing Ambassador.
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- `ingress_ambassador_update_window` (default `0 0 * * SUN`): _crontab_-like expression
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for specifying when the Operator should try to update the Ambassador API Gateway.
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- `ingress_ambassador_version` (default: `*`): SemVer rule for versions allowed for
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installation/updates.
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- `ingress_ambassador_multi_namespaces` (default `false`): By default, Ambassador will only
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watch the `ingress_ambassador_namespace` namespace for `AmbassadorInstallation` CRD resources.
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When set to `true`, this value will tell the Ambassador Operator to watch **all** namespaces
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for CRDs. If you want to run multiple Ambassador ingress instances, set this to `true`.
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## Ingress annotations
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The Ambassador API Gateway will automatically load balance `Ingress` resources
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that include the annotation `kubernetes.io/ingress.class=ambassador`. All the other
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resources will be just ignored.
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