bin/podman-cloud: install Helm

It is useful to manage Helm charts installed in a Kubernetes cluster.

bin/podman-cloud

@@ -28,6 +28,9 @@
 #   - to get current cluster-wide permissions: kubectl auth can-i --list
 #   - to list namespaces: kubectl get ns
 #
+# - Helm from https://helm.sh/docs/intro/install/#from-apt-debianubuntu
+#   - to list the installed packages: helm list --all-namespaces
+#
 # - AWS (Amazon Web Service) CLI from
 #   https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html#cliv2-linux-install
 #   - to get active user: aws sts get-caller-identity
@@ -94,10 +97,12 @@ RUN set -eux && \
     echo 'Package: kubectl' > /etc/apt/preferences.d/k8s && \
     echo 'Pin: release o=obs://build.opensuse.org/isv:kubernetes:core:stable:v1.29/deb,n=deb,l=isv:kubernetes:core:stable:v1.29,c=' >> /etc/apt/preferences.d/k8s && \
     echo 'Pin-Priority: 1000' >> /etc/apt/preferences.d/k8s && \
+    curl -fsSL https://baltocdn.com/helm/signing.asc | gpg --dearmor -o /usr/share/keyrings/helm.gpg && \
+    echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/helm.gpg] https://baltocdn.com/helm/stable/debian/ all main" > /etc/apt/sources.list.d/helm-stable-debian.list && \
     curl -fsSL https://packages.cloud.google.com/apt/doc/apt-key.gpg | gpg --dearmor -o /etc/apt/keyrings/cloud.google.gpg && \
     echo 'deb [signed-by=/etc/apt/keyrings/cloud.google.gpg] https://packages.cloud.google.com/apt cloud-sdk main' > /etc/apt/sources.list.d/google-cloud-sdk.list && \
     apt-get update && \
-    apt-get install --no-install-recommends --no-install-suggests -y google-cloud-cli google-cloud-cli-gke-gcloud-auth-plugin kubectl && \
+    apt-get install --no-install-recommends --no-install-suggests -y google-cloud-cli google-cloud-cli-gke-gcloud-auth-plugin helm kubectl && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/ /var/log/* && \
     cd /opt && \