docs: add Helm chart installation

Signed-off-by: Krypton <root@krypton.ninja>

web/docs/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/docs/troubleshooting.md

@@ -485,14 +485,10 @@ If problems persist:
 
 ### Plugin Limitations
 
-1. **Installation method**: Currently only supports manifest and Kustomize
+1. **Sidecar resource sharing**: The plugin sidecar container shares pod
-   installation ([#351](https://github.com/cloudnative-pg/plugin-barman-cloud/issues/351) -
-   Helm chart requested)
-
-2. **Sidecar resource sharing**: The plugin sidecar container shares pod
    resources with PostgreSQL
 
-3. **Plugin restart behavior**: Restarting the sidecar container requires
+2. **Plugin restart behavior**: Restarting the sidecar container requires
    restarting the entire PostgreSQL pod
 
 ## Recap of General Debugging Steps
@@ -588,4 +584,3 @@ kubectl get secret -n <namespace> <secret-name> -o jsonpath='{.data}' | jq 'keys
 * **"NoSuchBucket"** — Verify the bucket exists and the endpoint URL is correct.
 * **"Connection timeout"** — Check network connectivity and firewall rules.
 * **"SSL certificate problem"** — For self-signed certificates, verify the CA bundle configuration.
-

web/src/components/HelmInstallation/index.tsx

@@ -0,0 +1,23 @@
+import { ReactElement } from "react";
+import CodeBlock from "@theme/CodeBlock";
+
+type HelmInstallationProps = {
+  chartVersion?: string;
+};
+
+// HelmInstallationSnippet is the Helm incantation to install a specific
+// or latest available version of the Barman Cloud Plugin.
+export function HelmInstallationSnippet({
+  chartVersion,
+}: HelmInstallationProps): ReactElement<null> {
+  const versionArg = chartVersion ? `\n  --version ${chartVersion} \\` : "";
+  return (
+    <CodeBlock language="sh">
+      {`helm repo add cnpg https://cloudnative-pg.github.io/charts --force-update
+helm upgrade --install barman-cloud \\
+  --namespace cnpg-system \\
+  --create-namespace \\${versionArg}
+  cnpg/plugin-barman-cloud`}
+    </CodeBlock>
+  );
+}

web/versioned_docs/version-0.10.0/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet chartVersion="0.4.0" />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/versioned_docs/version-0.10.0/troubleshooting.md

@@ -485,14 +485,10 @@ If problems persist:
 
 ### Plugin Limitations
 
-1. **Installation method**: Currently only supports manifest and Kustomize
+1. **Sidecar resource sharing**: The plugin sidecar container shares pod
-   installation ([#351](https://github.com/cloudnative-pg/plugin-barman-cloud/issues/351) -
-   Helm chart requested)
-
-2. **Sidecar resource sharing**: The plugin sidecar container shares pod
    resources with PostgreSQL
 
-3. **Plugin restart behavior**: Restarting the sidecar container requires
+2. **Plugin restart behavior**: Restarting the sidecar container requires
    restarting the entire PostgreSQL pod
 
 ## Recap of General Debugging Steps
@@ -588,4 +584,3 @@ kubectl get secret -n <namespace> <secret-name> -o jsonpath='{.data}' | jq 'keys
 * **"NoSuchBucket"** — Verify the bucket exists and the endpoint URL is correct.
 * **"Connection timeout"** — Check network connectivity and firewall rules.
 * **"SSL certificate problem"** — For self-signed certificates, verify the CA bundle configuration.
-

web/versioned_docs/version-0.11.0/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet chartVersion="0.5.0" />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/versioned_docs/version-0.11.0/troubleshooting.md

@@ -485,14 +485,10 @@ If problems persist:
 
 ### Plugin Limitations
 
-1. **Installation method**: Currently only supports manifest and Kustomize
+1. **Sidecar resource sharing**: The plugin sidecar container shares pod
-   installation ([#351](https://github.com/cloudnative-pg/plugin-barman-cloud/issues/351) -
-   Helm chart requested)
-
-2. **Sidecar resource sharing**: The plugin sidecar container shares pod
    resources with PostgreSQL
 
-3. **Plugin restart behavior**: Restarting the sidecar container requires
+2. **Plugin restart behavior**: Restarting the sidecar container requires
    restarting the entire PostgreSQL pod
 
 ## Recap of General Debugging Steps
@@ -588,4 +584,3 @@ kubectl get secret -n <namespace> <secret-name> -o jsonpath='{.data}' | jq 'keys
 * **"NoSuchBucket"** — Verify the bucket exists and the endpoint URL is correct.
 * **"Connection timeout"** — Check network connectivity and firewall rules.
 * **"SSL certificate problem"** — For self-signed certificates, verify the CA bundle configuration.
-

web/versioned_docs/version-0.12.0/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet chartVersion="0.6.0" />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/versioned_docs/version-0.12.0/troubleshooting.md

@@ -485,14 +485,10 @@ If problems persist:
 
 ### Plugin Limitations
 
-1. **Installation method**: Currently only supports manifest and Kustomize
+1. **Sidecar resource sharing**: The plugin sidecar container shares pod
-   installation ([#351](https://github.com/cloudnative-pg/plugin-barman-cloud/issues/351) -
-   Helm chart requested)
-
-2. **Sidecar resource sharing**: The plugin sidecar container shares pod
    resources with PostgreSQL
 
-3. **Plugin restart behavior**: Restarting the sidecar container requires
+2. **Plugin restart behavior**: Restarting the sidecar container requires
    restarting the entire PostgreSQL pod
 
 ## Recap of General Debugging Steps
@@ -588,4 +584,3 @@ kubectl get secret -n <namespace> <secret-name> -o jsonpath='{.data}' | jq 'keys
 * **"NoSuchBucket"** — Verify the bucket exists and the endpoint URL is correct.
 * **"Connection timeout"** — Check network connectivity and firewall rules.
 * **"SSL certificate problem"** — For self-signed certificates, verify the CA bundle configuration.
-

web/versioned_docs/version-0.13.0/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet chartVersion="0.7.0" />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/versioned_docs/version-0.13.0/troubleshooting.md

@@ -485,14 +485,10 @@ If problems persist:
 
 ### Plugin Limitations
 
-1. **Installation method**: Currently only supports manifest and Kustomize
+1. **Sidecar resource sharing**: The plugin sidecar container shares pod
-   installation ([#351](https://github.com/cloudnative-pg/plugin-barman-cloud/issues/351) -
-   Helm chart requested)
-
-2. **Sidecar resource sharing**: The plugin sidecar container shares pod
    resources with PostgreSQL
 
-3. **Plugin restart behavior**: Restarting the sidecar container requires
+2. **Plugin restart behavior**: Restarting the sidecar container requires
    restarting the entire PostgreSQL pod
 
 ## Recap of General Debugging Steps
@@ -588,4 +584,3 @@ kubectl get secret -n <namespace> <secret-name> -o jsonpath='{.data}' | jq 'keys
 * **"NoSuchBucket"** — Verify the bucket exists and the endpoint URL is correct.
 * **"Connection timeout"** — Check network connectivity and firewall rules.
 * **"SSL certificate problem"** — For self-signed certificates, verify the CA bundle configuration.
-

web/versioned_docs/version-0.5.0/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet chartVersion="0.1.0" />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/versioned_docs/version-0.7.0/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet chartVersion="0.2.0" />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/versioned_docs/version-0.7.0/troubleshooting.md

@@ -474,14 +474,10 @@ If problems persist:
 
 ### Plugin Limitations
 
-1. **Installation method**: Currently only supports manifest and Kustomize
+1. **Sidecar resource sharing**: The plugin sidecar container shares pod
-   installation ([#351](https://github.com/cloudnative-pg/plugin-barman-cloud/issues/351) -
-   Helm chart requested)
-
-2. **Sidecar resource sharing**: The plugin sidecar container shares pod
    resources with PostgreSQL
 
-3. **Plugin restart behavior**: Restarting the sidecar container requires
+2. **Plugin restart behavior**: Restarting the sidecar container requires
    restarting the entire PostgreSQL pod
 
 ## Recap of General Debugging Steps
@@ -577,4 +573,3 @@ kubectl get secret -n <namespace> <secret-name> -o jsonpath='{.data}' | jq 'keys
 * **"NoSuchBucket"** — Verify the bucket exists and the endpoint URL is correct.
 * **"Connection timeout"** — Check network connectivity and firewall rules.
 * **"SSL certificate problem"** — For self-signed certificates, verify the CA bundle configuration.
-

web/versioned_docs/version-0.9.0/installation.mdx

@@ -55,6 +55,28 @@ Both checks are required before proceeding with the installation.
 ## Installing the Barman Cloud Plugin
 
 import { InstallationSnippet } from '@site/src/components/Installation';
+import { HelmInstallationSnippet } from '@site/src/components/HelmInstallation';
+
+### Using the Helm Chart
+
+The plugin can be installed using the provided [Helm chart](https://github.com/cloudnative-pg/charts/tree/main/charts/plugin-barman-cloud):
+
+<HelmInstallationSnippet chartVersion="0.3.1" />
+
+Example output:
+
+```output
+Release "barman-cloud" does not exist. Installing it now.
+NAME: barman-cloud
+LAST DEPLOYED: Wed Jul  1 09:05:16 2026
+NAMESPACE: cnpg-system
+STATUS: deployed
+REVISION: 1
+DESCRIPTION: Install complete
+TEST SUITE: None
+```
+
+### Directly using the manifest
 
 Install the plugin using `kubectl` by applying the manifest for the latest
 release:
@@ -83,6 +105,8 @@ certificate.cert-manager.io/barman-cloud-server created
 issuer.cert-manager.io/selfsigned-issuer created
 ```
 
+---
+
 Finally, check that the deployment is up and running:
 
 ```sh

web/versioned_docs/version-0.9.0/troubleshooting.md

@@ -474,14 +474,10 @@ If problems persist:
 
 ### Plugin Limitations
 
-1. **Installation method**: Currently only supports manifest and Kustomize
+1. **Sidecar resource sharing**: The plugin sidecar container shares pod
-   installation ([#351](https://github.com/cloudnative-pg/plugin-barman-cloud/issues/351) -
-   Helm chart requested)
-
-2. **Sidecar resource sharing**: The plugin sidecar container shares pod
    resources with PostgreSQL
 
-3. **Plugin restart behavior**: Restarting the sidecar container requires
+2. **Plugin restart behavior**: Restarting the sidecar container requires
    restarting the entire PostgreSQL pod
 
 ## Recap of General Debugging Steps
@@ -577,4 +573,3 @@ kubectl get secret -n <namespace> <secret-name> -o jsonpath='{.data}' | jq 'keys
 * **"NoSuchBucket"** — Verify the bucket exists and the endpoint URL is correct.
 * **"Connection timeout"** — Check network connectivity and firewall rules.
 * **"SSL certificate problem"** — For self-signed certificates, verify the CA bundle configuration.
-