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Add Linux functions (#21)
* Add missing entry in Helm README list * Add suselinux_install_openiscsi function * Use single quote strings when possible * Add linux_create_fileAndDevice function
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‎charts/README.md‎

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* [Let's Encrypt](letsencrypt/README.md)
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* [NFS-Ganesha](nfs-ganesha/README.md)
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* [NFS Server Provisioner](nfs-server-provisioner/README.md)
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* [Portworx BBQ](portworx-bbq/README.md)
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* [Rancher Cluster Template](rancher-cluster-templates/README.md)
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* [WordPress](wordpress/README.md)
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‎scripts/README.md‎

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## Bash functions
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### Instruqt
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Name | Source
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----------------------------|-------------------------------------
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`instruqt_wait_hoststartup` | [instruqt/host.sh](instruqt/host.sh)
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### K3s
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Name | Source
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----------------------|-----------------------------------------------------
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`k3s_copy_kubeconfig` | [k3s/cluster_lifecycle.sh](k3s/cluster_lifecycle.sh)
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`k3s_create_cluster` | [k3s/cluster_lifecycle.sh](k3s/cluster_lifecycle.sh)
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### Kubernetes
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Name | Source
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--------------------------------------|-----------------------------------------------------------------------------
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`k8s_create_letsencryptclusterissuer` | [kubernetes/certificate_management.sh](kubernetes/certificate_management.sh)
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`k8s_install_certmanager` | [kubernetes/certificate_management.sh](kubernetes/certificate_management.sh)
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`k8s_wait_fornodesandpods` | [kubernetes/cluster_status.sh](kubernetes/cluster_status.sh)
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### Keycloak
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Name | Source
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-----------------------|---------------------------------------------------------
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`keycloak_login` | [authentication/keycloak.sh](authentication/keycloak.sh)
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`keycloak_create_user` | [authentication/keycloak.sh](authentication/keycloak.sh)
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`keycloak_delete_user` | [authentication/keycloak.sh](authentication/keycloak.sh)
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### Linux
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Name | Source
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-----------------------------|-------------------------------
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`linux_create_fileAndLoopDevice` | [linux/disk.sh](linux/disk.sh)
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### Rancher
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Name | Source
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-----------------------------------------------|-----------------------------------------------------------------------------
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`instruqt_wait_hoststartup` | [instruqt/host.sh](instruqt/host.sh)
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`k3s_copy_kubeconfig` | [k3s/cluster_lifecycle.sh](k3s/cluster_lifecycle.sh)
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`k3s_create_cluster` | [k3s/cluster_lifecycle.sh](k3s/cluster_lifecycle.sh)
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`k8s_create_letsencryptclusterissuer` | [kubernetes/certificate_management.sh](kubernetes/certificate_management.sh)
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`k8s_install_certmanager` | [kubernetes/certificate_management.sh](kubernetes/certificate_management.sh)
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`k8s_wait_fornodesandpods` | [kubernetes/cluster_status.sh](kubernetes/cluster_status.sh)
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`keycloak_login` | [authentication/keycloak.sh](authentication/keycloak.sh)
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`keycloak_create_user` | [authentication/keycloak.sh](authentication/keycloak.sh)
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`keycloak_delete_user` | [authentication/keycloak.sh](authentication/keycloak.sh)
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`observability_check_stackpack` | [observability/stackpack.sh](observability/stackpack.sh)
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`observability_create_ingestion_api_key` | [observability/api_key.sh](observability/api_key.sh)
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`observability_delete_ingestion_api_key` | [observability/api_key.sh](observability/api_key.sh)
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`observability_delete_stackpack` | [observability/stackpack.sh](observability/stackpack.sh)
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`observability_get_component_snapshot` | [observability/stql.sh](observability/stql.sh)
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`observability_get_component_state` | [observability/stql.sh](observability/stql.sh)
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`observability_install_cli` | [observability/cli.sh](observability/cli.sh)
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-----------------------------------------------|-------------------------------------------------------------
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`rancher_create_apikey` | [rancher/user_actions.sh](rancher/user_actions.sh)
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`rancher_create_customcluster` | [rancher/cluster_actions.sh](rancher/cluster_actions.sh)
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`rancher_first_login` | [rancher/manager_lifecycle.sh](rancher/manager_lifecycle.sh)
@@ -31,11 +52,29 @@ Name | Source
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`rancher_update_password` | [rancher/user_actions.sh](rancher/user_actions.sh)
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`rancher_update_serverurl` | [rancher/manager_settings.sh](rancher/manager_settings.sh)
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`rancher_wait_capiready` | [rancher/manager_lifecycle.sh](rancher/manager_lifecycle.sh)
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`suselinux_install_git` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_install_helm` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_install_kubectl` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_install_podman` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_register_cloudguest` | [suselinux/registration.sh](suselinux/registration.sh)
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### SUSE Observability
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Name | Source
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-----------------------------------------|---------------------------------------------------------
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`observability_check_stackpack` | [observability/stackpack.sh](observability/stackpack.sh)
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`observability_create_ingestion_api_key` | [observability/api_key.sh](observability/api_key.sh)
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`observability_delete_ingestion_api_key` | [observability/api_key.sh](observability/api_key.sh)
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`observability_delete_stackpack` | [observability/stackpack.sh](observability/stackpack.sh)
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`observability_get_component_snapshot` | [observability/stql.sh](observability/stql.sh)
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`observability_get_component_state` | [observability/stql.sh](observability/stql.sh)
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`observability_install_cli` | [observability/cli.sh](observability/cli.sh)
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### SUSE Linux (previously SLES, SLE Micro)
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Name | Source
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--------------------------------|-------------------------------------------------------
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`suselinux_install_git` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_install_helm` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_install_kubectl` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_install_openiscsi` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_install_podman` | [suselinux/packages.sh](suselinux/packages.sh)
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`suselinux_register_cloudguest` | [suselinux/registration.sh](suselinux/registration.sh)
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## Concrete examples
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‎scripts/k3s/cluster_lifecycle.sh‎

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k3s_create_cluster() {
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local version=$1
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echo "Create management cluster (K3s)..."
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echo 'Create management cluster (K3s)...'
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curl -sfL https://get.k3s.io | INSTALL_K3S_CHANNEL="${version}" K3S_KUBECONFIG_MODE="644" sh -
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}
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‎scripts/kubernetes/certificate_management.sh‎

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k8s_install_certmanager() {
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local version=$1
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echo "Installing cert-manager..."
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echo 'Installing cert-manager...'
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helm repo add jetstack https://charts.jetstack.io
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helm repo update
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kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/${version}/cert-manager.crds.yaml

‎scripts/kubernetes/cluster_status.sh‎

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k8s_wait_fornodesandpods() {
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# checks nodes are ready
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while ! kubectl get nodes --no-headers 2>/dev/null | grep -q .; do
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echo "Waiting for nodes to be available..."
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echo 'Waiting for nodes to be available...'
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sleep 5
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done
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while true; do
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NOT_READY_NODES=$(kubectl get nodes --no-headers 2>/dev/null | grep -v " Ready" | wc -l)
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if [ "$NOT_READY_NODES" -eq 0 ]; then
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echo "All nodes are ready."
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echo 'All nodes are ready.'
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break
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else
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sleep 5
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# checks pods are completed or running
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while ! kubectl get pods --all-namespaces --no-headers 2>/dev/null | grep -q .; do
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echo "Waiting for pods to be available..."
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echo 'Waiting for pods to be available...'
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sleep 5
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done
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while true; do
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NOT_READY_PODS=$(kubectl get pods --all-namespaces --field-selector=status.phase!=Running,status.phase!=Succeeded --no-headers 2>/dev/null | wc -l)
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if [ "$NOT_READY_PODS" -eq 0 ]; then
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echo "All pods are in Running or Completed status."
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echo 'All pods are in Running or Completed status.'
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break
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else
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sleep 5

‎scripts/linux/disk.sh‎

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#!/bin/bash
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# Collection of functions to work with disks on Linux
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#######################################
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# Create a file and binds it to a loop device
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# Arguments:
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# File name
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# Size file (number of blocks)
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# Look device
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# Examples:
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# linux_create_fileAndLoopDevice '/loop-file1' '10240' '/dev/loop1'
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#######################################
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linux_create_fileAndLoopDevice() {
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local fileName=$1
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local sizeFile=$2
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local loopDevice=$3
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echo "Creating local file ${fileName} and loop device ${fileName}..."
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# prepares the file for use with loopback device (creates a file filled with zero bytes)
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dd if=/dev/zero of=${fileName} bs=1M count=${sizeFile} status=progress
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# binds the file to the loop device (enabling to work with the file as if it were a block device, like a physical disk)
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losetup ${loopDevice} ${fileName}
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}

‎scripts/rancher/cluster_actions.sh‎

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# rancher_list_clusters
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#######################################
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rancher_list_clusters() {
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echo "Listing clusters registered in Rancher..."
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echo 'Listing clusters registered in Rancher...'
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kubectl get clusters.provisioning.cattle.io --all-namespaces -o jsonpath='{range .items[*]}{.metadata.name}{"\n"}{end}'
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}
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rancher_wait_capiready
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echo "Creating downstream cluster in Rancher..."
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echo 'Creating downstream cluster in Rancher...'
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cat <<EOF | kubectl apply -f -
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apiVersion: provisioning.cattle.io/v1
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kind: Cluster

‎scripts/rancher/manager_lifecycle.sh‎

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local hostname=$4
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local clusterissuer=$5
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echo "Installing Rancher..."
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echo 'Installing Rancher...'
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helm repo add rancher-${repository} https://releases.rancher.com/server-charts/${repository}
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helm repo update
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helm upgrade --install rancher rancher-${repository}/rancher --namespace cattle-system --create-namespace \
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--set ingress.tls.secretName=rancher-tls \
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--set agentTLSMode="system-store"
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kubectl wait pods -n cattle-system -l app=rancher --for condition=Ready --timeout=180s
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echo "Waiting for Rancher web app to be running with a valid certificate..."
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echo 'Waiting for Rancher web app to be running with a valid certificate...'
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while ! kubectl get secret rancher-tls --namespace cattle-system 2>/dev/null; do sleep 1; done
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sleep 10
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}
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local rancherUrl=$1
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local newPassword=$2
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echo "Do first login on Rancher..."
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echo 'Do first login on Rancher...'
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BOOTSTRAP_PASSWORD=$(kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}{{ "\n" }}')
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echo "DEBUG BOOTSTRAP_PASSWORD=${BOOTSTRAP_PASSWORD}"
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rancher_login_withpassword $rancherUrl 'admin' $BOOTSTRAP_PASSWORD
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rancher_wait_capiready() {
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while true; do
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status=$(kubectl get deployment capi-controller-manager -n cattle-provisioning-capi-system -o jsonpath='{.status.conditions[?(@.type=="Available")].status}' 2>/dev/null)
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if [ "$status" == "True" ]; then
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echo "Deployment capi-controller-manager is available"
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if [ "$status" == 'True' ]; then
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echo 'Deployment capi-controller-manager is available'
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break
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fi
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sleep 10
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done
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while [[ $(kubectl get endpoints capi-webhook-service -n cattle-provisioning-capi-system -o jsonpath='{.subsets}' 2>/dev/null) == "" ]]; do
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while [[ $(kubectl get endpoints capi-webhook-service -n cattle-provisioning-capi-system -o jsonpath='{.subsets}' 2>/dev/null) == '' ]]; do
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sleep 10
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done
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echo "Service capi-webhook-service is ready"
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echo 'Service capi-webhook-service is ready'
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}

‎scripts/rancher/manager_settings.sh‎

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rancher_update_serverurl() {
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local rancherUrl=$1
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echo "Sets Rancher URL in settings..."
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echo 'Sets Rancher URL in settings...'
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kubectl patch settings.management.cattle.io server-url --type='merge' --patch '{ "value": "'$rancherUrl'" }'
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}

‎scripts/rancher/user_actions.sh‎

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@@ -44,7 +44,7 @@ rancher_update_password() {
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local currentPassword=$3
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local newPassword=$4
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echo "Updates Rancher user password..."
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echo 'Updates Rancher user password...'
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curl -s -k -H "Authorization: Bearer $token" \
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-H 'Content-Type: application/json' \
5050
-X POST \
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local token=$2
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local description=$3
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echo "Creates a Rancher API Key..."
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echo 'Creates a Rancher API Key...'
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API_KEY_RESPONSE=$(curl -s -k "$rancherUrl/v3/tokens" \
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-H 'Content-Type: application/json' \
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-H "Authorization: Bearer $token" \

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