Automation Suite
2022.4
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- Overview
- Requirements
- Installation
- Post-installation
- Cluster administration
- Managing products
- Managing the cluster in ArgoCD
- Setting up the external NFS server
- Automated: Enabling the Backup on the Cluster
- Automated: Disabling the Backup on the Cluster
- Automated, Online: Restoring the Cluster
- Automated, Offline: Restoring the Cluster
- Manual: Enabling the Backup on the Cluster
- Manual: Disabling the Backup on the Cluster
- Manual, Online: Restoring the Cluster
- Manual, Offline: Restoring the Cluster
- Additional configuration
- Migrating objectstore from persistent volume to raw disks
- Monitoring and alerting
- Migration and upgrade
- Migration options
- Step 1: Moving the Identity organization data from standalone to Automation Suite
- Step 2: Restoring the standalone product database
- Step 3: Backing up the platform database in Automation Suite
- Step 4: Merging organizations in Automation Suite
- Step 5: Updating the migrated product connection strings
- Step 6: Migrating standalone Insights
- Step 7: Deleting the default tenant
- B) Single tenant migration
- Product-specific configuration
- Best practices and maintenance
- Troubleshooting
- How to Troubleshoot Services During Installation
- How to Uninstall the Cluster
- How to clean up offline artifacts to improve disk space
- How to clear Redis data
- How to enable Istio logging
- How to manually clean up logs
- How to clean up old logs stored in the sf-logs bundle
- How to disable streaming logs for AI Center
- How to debug failed Automation Suite installations
- How to delete images from the old installer after upgrade
- How to automatically clean up Longhorn snapshots
- How to disable NIC checksum offloading
- Unable to run an offline installation on RHEL 8.4 OS
- Error in Downloading the Bundle
- Offline installation fails because of missing binary
- Certificate issue in offline installation
- First installation fails during Longhorn setup
- SQL connection string validation error
- Prerequisite check for selinux iscsid module fails
- Azure disk not marked as SSD
- Failure After Certificate Update
- Automation Suite not working after OS upgrade
- Automation Suite Requires Backlog_wait_time to Be Set 1
- Volume unable to mount due to not being ready for workloads
- RKE2 fails during installation and upgrade
- Failure to upload or download data in objectstore
- PVC resize does not heal Ceph
- Failure to Resize Objectstore PVC
- Rook Ceph or Looker pod stuck in Init state
- StatefulSet volume attachment error
- Failure to create persistent volumes
- Storage reclamation patch
- Backup failed due to TooManySnapshots error
- All Longhorn replicas are faulted
- Setting a timeout interval for the management portals
- Update the underlying directory connections
- Cannot Log in After Migration
- Kinit: Cannot Find KDC for Realm <AD Domain> While Getting Initial Credentials
- Kinit: Keytab Contains No Suitable Keys for *** While Getting Initial Credentials
- GSSAPI Operation Failed With Error: An Invalid Status Code Was Supplied (Client's Credentials Have Been Revoked).
- Alarm Received for Failed Kerberos-tgt-update Job
- SSPI Provider: Server Not Found in Kerberos Database
- Login Failed for User <ADDOMAIN><aduser>. Reason: The Account Is Disabled.
- ArgoCD login failed
- Failure to get the sandbox image
- Pods not showing in ArgoCD UI
- Redis Probe Failure
- RKE2 Server Fails to Start
- Secret Not Found in UiPath Namespace
- After the Initial Install, ArgoCD App Went Into Progressing State
- MongoDB pods in CrashLoopBackOff or pending PVC provisioning after deletion
- Unexpected Inconsistency; Run Fsck Manually
- Degraded MongoDB or Business Applications After Cluster Restore
- Missing Self-heal-operator and Sf-k8-utils Repo
- Unhealthy Services After Cluster Restore or Rollback
- RabbitMQ pod stuck in CrashLoopBackOff
- Prometheus in CrashloopBackoff state with out-of-memory (OOM) error
- Missing Ceph-rook metrics from monitoring dashboards
- Using the Automation Suite Diagnostics Tool
- Using the Automation Suite Support Bundle Tool
- Exploring Logs
How to Uninstall the Cluster
Automation Suite Installation Guide
Last updated Apr 24, 2024
How to Uninstall the Cluster
If you experience issues specific to Kubernetes running on the cluster, you can directly uninstall the rke2 cluster. To do that, take the following steps:
-
Depending on your installation profile, run one of the following commands:
-
In an online setup, run the following script with elevated privileges, i.e.
sudo
, on each node of the cluster. This will uninstall the nodes.function remove_rke2_entry_from_exclude() { local current_exclude_list new_exclude_list YUM_CONF_FILE=$1 if [[ ! -s "${YUM_CONF_FILE}" ]]; then # File is empty return fi current_exclude_list=$(grep 'exclude=' "${YUM_CONF_FILE}" | tail -1) if echo "$current_exclude_list" | grep -q 'rke2-*'; then if [[ -w ${YUM_CONF_FILE} ]]; then new_exclude_list=$(printf '%s\n' "${current_exclude_list//rke2-* /}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-*,/}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-\*/}") sed -i "/exclude=.*rke2-\*/d" "${YUM_CONF_FILE}" echo "${new_exclude_list}" >> "${YUM_CONF_FILE}" else error "${YUM_CONF_FILE} file is readonly and contains rke2-* under package exclusion. Please remove the entry for AS to work." fi fi } function enable_rke2_package_upgrade() { remove_rke2_entry_from_exclude /etc/dnf/dnf.conf remove_rke2_entry_from_exclude /etc/yum.conf } enable_rke2_package_upgrade service_exists() { local n=$1 if [[ $(systemctl list-units --all -t service --full --no-legend "$n.service" | cut -f1 -d' ') == $n.service ]]; then return 0 else return 1 fi } if service_exists rke2-server; then systemctl stop rke2-server systemctl disable rke2-server fi if service_exists rke2-agent; then systemctl stop rke2-agent systemctl disable rke2-agent fi if [ -e /usr/bin/rke2-killall.sh ] then echo "Running rke2-killall.sh" /usr/bin/rke2-killall.sh > /dev/null else echo "File not found: rke2-killall.sh" fi if [ -e /usr/bin/rke2-uninstall.sh ] then echo "Running rke2-uninstall.sh" /usr/bin/rke2-uninstall.sh > /dev/null else echo "File not found: rke2-uninstall.sh" fi crontab -l > backupcron sed -i '/backupjob/d' backupcron > /dev/null crontab backupcron > /dev/null rm -rf backupcron > /dev/null rm -rfv /usr/bin/backupjob > /dev/null rm -rfv /etc/rancher/ > /dev/null rm -rfv /var/lib/rook/ > /dev/null rm -rfv /var/lib/longhorn/ > /dev/null rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null umount -l -f /var/lib/rancher/rke2/server/db > /dev/null 2>&1 || true rm -rfv /var/lib/rancher/* > /dev/null umount -l -f /var/lib/rancher rm -rfv /var/lib/rancher/* > /dev/null while ! rm -rfv /var/lib/kubelet/* > /dev/null; do findmnt --list --submounts -n -o TARGET --target /var/lib/kubelet | grep '/var/lib/kubelet/plugins' | xargs -r umount -f -l sleep 5 done umount -l -f /var/lib/kubelet rm -rfv /var/lib/kubelet/* > /dev/null rm -rfv /datadisk/* > /dev/null umount -l -f /datadisk rm -rfv /datadisk/* > /dev/null rm -rfv ~/.uipath/* > /dev/null mount /var/lib/rancher mkdir -p /var/lib/rancher/rke2/server/db/ && mount -a rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null echo "Uninstall RKE complete."
function remove_rke2_entry_from_exclude() { local current_exclude_list new_exclude_list YUM_CONF_FILE=$1 if [[ ! -s "${YUM_CONF_FILE}" ]]; then # File is empty return fi current_exclude_list=$(grep 'exclude=' "${YUM_CONF_FILE}" | tail -1) if echo "$current_exclude_list" | grep -q 'rke2-*'; then if [[ -w ${YUM_CONF_FILE} ]]; then new_exclude_list=$(printf '%s\n' "${current_exclude_list//rke2-* /}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-*,/}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-\*/}") sed -i "/exclude=.*rke2-\*/d" "${YUM_CONF_FILE}" echo "${new_exclude_list}" >> "${YUM_CONF_FILE}" else error "${YUM_CONF_FILE} file is readonly and contains rke2-* under package exclusion. Please remove the entry for AS to work." fi fi } function enable_rke2_package_upgrade() { remove_rke2_entry_from_exclude /etc/dnf/dnf.conf remove_rke2_entry_from_exclude /etc/yum.conf } enable_rke2_package_upgrade service_exists() { local n=$1 if [[ $(systemctl list-units --all -t service --full --no-legend "$n.service" | cut -f1 -d' ') == $n.service ]]; then return 0 else return 1 fi } if service_exists rke2-server; then systemctl stop rke2-server systemctl disable rke2-server fi if service_exists rke2-agent; then systemctl stop rke2-agent systemctl disable rke2-agent fi if [ -e /usr/bin/rke2-killall.sh ] then echo "Running rke2-killall.sh" /usr/bin/rke2-killall.sh > /dev/null else echo "File not found: rke2-killall.sh" fi if [ -e /usr/bin/rke2-uninstall.sh ] then echo "Running rke2-uninstall.sh" /usr/bin/rke2-uninstall.sh > /dev/null else echo "File not found: rke2-uninstall.sh" fi crontab -l > backupcron sed -i '/backupjob/d' backupcron > /dev/null crontab backupcron > /dev/null rm -rf backupcron > /dev/null rm -rfv /usr/bin/backupjob > /dev/null rm -rfv /etc/rancher/ > /dev/null rm -rfv /var/lib/rook/ > /dev/null rm -rfv /var/lib/longhorn/ > /dev/null rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null umount -l -f /var/lib/rancher/rke2/server/db > /dev/null 2>&1 || true rm -rfv /var/lib/rancher/* > /dev/null umount -l -f /var/lib/rancher rm -rfv /var/lib/rancher/* > /dev/null while ! rm -rfv /var/lib/kubelet/* > /dev/null; do findmnt --list --submounts -n -o TARGET --target /var/lib/kubelet | grep '/var/lib/kubelet/plugins' | xargs -r umount -f -l sleep 5 done umount -l -f /var/lib/kubelet rm -rfv /var/lib/kubelet/* > /dev/null rm -rfv /datadisk/* > /dev/null umount -l -f /datadisk rm -rfv /datadisk/* > /dev/null rm -rfv ~/.uipath/* > /dev/null mount /var/lib/rancher mkdir -p /var/lib/rancher/rke2/server/db/ && mount -a rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null echo "Uninstall RKE complete." -
In an offline setup, run the following script with elevated privileges, i.e.
sudo
, on each node of the cluster. This will uninstall the nodes.function remove_rke2_entry_from_exclude() { local current_exclude_list new_exclude_list YUM_CONF_FILE=$1 if [[ ! -s "${YUM_CONF_FILE}" ]]; then # File is empty return fi current_exclude_list=$(grep 'exclude=' "${YUM_CONF_FILE}" | tail -1) if echo "$current_exclude_list" | grep -q 'rke2-*'; then if [[ -w ${YUM_CONF_FILE} ]]; then new_exclude_list=$(printf '%s\n' "${current_exclude_list//rke2-* /}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-*,/}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-\*/}") sed -i "/exclude=.*rke2-\*/d" "${YUM_CONF_FILE}" echo "${new_exclude_list}" >> "${YUM_CONF_FILE}" else error "${YUM_CONF_FILE} file is readonly and contains rke2-* under package exclusion. Please remove the entry for AS to work." fi fi } function enable_rke2_package_upgrade() { remove_rke2_entry_from_exclude /etc/dnf/dnf.conf remove_rke2_entry_from_exclude /etc/yum.conf } enable_rke2_package_upgrade service_exists() { local n=$1 if [[ $(systemctl list-units --all -t service --full --no-legend "$n.service" | cut -f1 -d' ') == $n.service ]]; then return 0 else return 1 fi } if service_exists rke2-server; then systemctl stop rke2-server systemctl disable rke2-server fi if service_exists rke2-agent; then systemctl stop rke2-agent systemctl disable rke2-agent fi if [ -e /usr/local/bin/rke2-killall.sh ] then echo "Running rke2-killall.sh" /usr/local/bin/rke2-killall.sh > /dev/null else echo "File not found: rke2-killall.sh" fi if [ -e /usr/local/bin/rke2-uninstall.sh ] then echo "Running rke2-uninstall.sh" /usr/local/bin/rke2-uninstall.sh > /dev/null else echo "File not found: rke2-uninstall.sh" fi crontab -l > backupcron sed -i '/backupjob/d' backupcron > /dev/null crontab backupcron > /dev/null rm -rf backupcron > /dev/null rm -rfv /usr/bin/backupjob > /dev/null rm -rfv /etc/rancher/ > /dev/null rm -rfv /var/lib/rook/ > /dev/null rm -rfv /var/lib/longhorn/ > /dev/null rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null umount -l -f /var/lib/rancher/rke2/server/db > /dev/null 2>&1 || true rm -rfv /var/lib/rancher/* > /dev/null umount -l -f /var/lib/rancher rm -rfv /var/lib/rancher/* > /dev/null while ! rm -rfv /var/lib/kubelet/* > /dev/null; do findmnt --list --submounts -n -o TARGET --target /var/lib/kubelet | grep '/var/lib/kubelet/plugins' | xargs -r umount -f -l sleep 5 done umount -l -f /var/lib/kubelet rm -rfv /var/lib/kubelet/* > /dev/null rm -rfv /datadisk/* > /dev/null umount -l -f /datadisk rm -rfv /datadisk/* > /dev/null rm -rfv ~/.uipath/* > /dev/null mount /var/lib/rancher mkdir -p /var/lib/rancher/rke2/server/db/ && mount -a rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null echo "Uninstall RKE complete."
function remove_rke2_entry_from_exclude() { local current_exclude_list new_exclude_list YUM_CONF_FILE=$1 if [[ ! -s "${YUM_CONF_FILE}" ]]; then # File is empty return fi current_exclude_list=$(grep 'exclude=' "${YUM_CONF_FILE}" | tail -1) if echo "$current_exclude_list" | grep -q 'rke2-*'; then if [[ -w ${YUM_CONF_FILE} ]]; then new_exclude_list=$(printf '%s\n' "${current_exclude_list//rke2-* /}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-*,/}") new_exclude_list=$(printf '%s\n' "${new_exclude_list//rke2-\*/}") sed -i "/exclude=.*rke2-\*/d" "${YUM_CONF_FILE}" echo "${new_exclude_list}" >> "${YUM_CONF_FILE}" else error "${YUM_CONF_FILE} file is readonly and contains rke2-* under package exclusion. Please remove the entry for AS to work." fi fi } function enable_rke2_package_upgrade() { remove_rke2_entry_from_exclude /etc/dnf/dnf.conf remove_rke2_entry_from_exclude /etc/yum.conf } enable_rke2_package_upgrade service_exists() { local n=$1 if [[ $(systemctl list-units --all -t service --full --no-legend "$n.service" | cut -f1 -d' ') == $n.service ]]; then return 0 else return 1 fi } if service_exists rke2-server; then systemctl stop rke2-server systemctl disable rke2-server fi if service_exists rke2-agent; then systemctl stop rke2-agent systemctl disable rke2-agent fi if [ -e /usr/local/bin/rke2-killall.sh ] then echo "Running rke2-killall.sh" /usr/local/bin/rke2-killall.sh > /dev/null else echo "File not found: rke2-killall.sh" fi if [ -e /usr/local/bin/rke2-uninstall.sh ] then echo "Running rke2-uninstall.sh" /usr/local/bin/rke2-uninstall.sh > /dev/null else echo "File not found: rke2-uninstall.sh" fi crontab -l > backupcron sed -i '/backupjob/d' backupcron > /dev/null crontab backupcron > /dev/null rm -rf backupcron > /dev/null rm -rfv /usr/bin/backupjob > /dev/null rm -rfv /etc/rancher/ > /dev/null rm -rfv /var/lib/rook/ > /dev/null rm -rfv /var/lib/longhorn/ > /dev/null rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null umount -l -f /var/lib/rancher/rke2/server/db > /dev/null 2>&1 || true rm -rfv /var/lib/rancher/* > /dev/null umount -l -f /var/lib/rancher rm -rfv /var/lib/rancher/* > /dev/null while ! rm -rfv /var/lib/kubelet/* > /dev/null; do findmnt --list --submounts -n -o TARGET --target /var/lib/kubelet | grep '/var/lib/kubelet/plugins' | xargs -r umount -f -l sleep 5 done umount -l -f /var/lib/kubelet rm -rfv /var/lib/kubelet/* > /dev/null rm -rfv /datadisk/* > /dev/null umount -l -f /datadisk rm -rfv /datadisk/* > /dev/null rm -rfv ~/.uipath/* > /dev/null mount /var/lib/rancher mkdir -p /var/lib/rancher/rke2/server/db/ && mount -a rm -rfv /var/lib/rancher/rke2/server/db/* > /dev/null echo "Uninstall RKE complete."
-
-
Reboot the node after uninstall.
Important: When uninstalling one of the nodes from the cluster, you must run the following command:
kubectl delete node <node_name>
. This removes the node from the cluster.