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Lockszmith
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c78ed8c081
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@ -0,0 +1,6 @@
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#! /usr/bin/env bash
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k3s crictl pods --namespace ix -s Ready \
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| sed 1d | grep -v svclb- \
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| sed -E 's/[[:space:]]([0-9]*|About)[a-z0-9 ]{5,12}ago[[:space:]]//' \
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| awk '{ print $4 }' \
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| sed 's/^ix-//' | sort -u
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@ -1,10 +1,24 @@
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#!/bin/bash
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#! /usr/bin/env bash
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SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
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USER_HOME=$HOME
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[[ -n "${SUDO_USER}" ]] && USER_HOME="$(eval "echo ~${SUDO_USER}")"
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. ${SHRC_D:-$SCRIPT_DIR}/01_util.functions
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set -e
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# create backup folder
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folder="./dumps/"
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mkdir -p "$folder"
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# get namespaces with postgres database pod
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namespaces=$(k3s kubectl get pods -A | grep postgres | awk '{print $1}')
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json_results=$(
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# While tcdbinfo lists all SQL databases, we want only postgresql
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# in this script.
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"${SCRIPT_DIR}/tcdbinfo.sh" --json "${@}" \
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| jq -s '.[] | select( .protocol = "postgresql" )'
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)
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namespaces=$(<<<"$json_results" jq -sr '.[] | .name')
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for ns in $namespaces; do
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# extract application name
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@ -18,7 +32,10 @@ for ns in $namespaces; do
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k3s kubectl scale deploy "$app" -n "$ns" --replicas=0
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while true; do k3s kubectl get pods -n "$ns" | grep -i -q terminating || break; done;
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k3s kubectl exec -n "$ns" -c "$app"-postgresql "$app"-postgresql-0 -- bash -c 'PGPASSWORD=$POSTGRES_PASSWORD pg_dump -Fc -U $POSTGRES_USER -d $POSTGRES_DB -f /tmp/'$file
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k3s kubectl exec -n "$ns" -c "$app"-postgresql "$app"-postgresql-0 -- bash -c "
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PGPASSWORD=\$POSTGRES_PASSWORD $( # Does not affect the output
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) pg_dump -Fc -U \$POSTGRES_USER -d \$POSTGRES_DB -f /tmp/$file
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"
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k3s kubectl cp -n "$ns" -c "$app"-postgresql "$app-postgresql-0:tmp/$file" $folder$file
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# Scale deployment back up
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@ -0,0 +1,145 @@
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#! /usr/bin/env bash
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SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
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USER_HOME=$HOME
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[[ -n "${SUDO_USER}" ]] && USER_HOME="$(eval "echo ~${SUDO_USER}")"
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. ${SHRC_D:-$SCRIPT_DIR}/01_util.functions
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set -e
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JSON=0
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if [[ $# -gt 0 && "$1" =~ ^-- ]]; then
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if [[ "$1" == "--help" ]]; then
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cat <<USAGE
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Usage:
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./$(basename $0) --help
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sudo ./$(basename $0) <pvc-search-pattern>
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sudo ./$(basename $0) <pvc-name> <restore-from> [<tmp-dest>]
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NOTE:
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DBG=' ' will add debug output
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without ZFS_DO=' ' zfs operations will not happen.
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Description:
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<pvc-search-pattern>
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a simple match pattern, that will list any matching pvc names
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<pvc-name>
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Must match a unique pvc name, most commonly these are
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<app-name>-config or <app-name>-data.
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<restore-from>
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zfs path to the dataset contianing the restore data
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<tmp-dest> (optional)
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default value for this is:
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\${ZFS_POOL\}/backup/tmp-\${APP_NAME\}-\${PVC\}
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available variables are:
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NAME,APP_NAME,PVC,ZFS_POOL
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Examples:
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List all PVCs ending with either '-data' or '-config':
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sudo ./$(basename $0) '-(data|config)$'
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Replace gitea-data's pvc with the one stored in tank/backup/gitea/pvc-backup
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preserving the current gitea-data pvc in the default location:
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tank/backup/tmp-gitea-data-pvc-... :
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sudo ./$(basename $0) 'gitea-data' 'tank/backup/gitea/pvc-backup'
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USAGE
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exit 0
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elif [[ "$1" == "--json" ]]; then
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JSON=1
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fi
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shift
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fi
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require_root
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PVCS="$(
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k3s kubectl get persistentvolume --output json \
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| jq '
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.items[]
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| select( .spec.claimRef.name | test("'"${1}"'") )
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| {
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name: .spec.claimRef.name
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,app: .spec.claimRef.namespace | sub("ix-"; "")
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,pvc: .spec.csi.volumeHandle
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,zfs_pvc: "\(
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.spec.csi.volumeAttributes."openebs.io/poolname"
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)/\(
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.spec.csi.volumeHandle
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)"
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,zfs_pool:
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.spec.csi.volumeAttributes."openebs.io/poolname"
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| split("/")[0]
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#,raw: .
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}
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'
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)"
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DISPLAY_ONLY=0
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LEN="$(jq -s 'length' <<<"$PVCS")"
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if [[ $# -eq 1 || "$LEN" -ne 1 ]]; then
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DISPLAY_ONLY=1
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fi
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if [[ "$LEN" -eq 0 ]]; then
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PVCS='"ERROR: EMPTY query results"'
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fi
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if [[ "${DISPLAY_ONLY}" != 0 ]]; then
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jq -r <<<"$PVCS"
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exit 0
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fi
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ENV="$(
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<<<"$PVCS" jq -r "[
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\"NAME='\(.name)'\"
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,\"APP_NAME='\(.app)'\"
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,\"PVC='\(.pvc)'\"
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,\"ZFS_PVC='\(.zfs_pvc)'\"
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,\"ZFS_POOL='\(.zfs_pool)'\"
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] | join (\"\n\")
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"
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)"
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${DBG:-:} echo "$ENV" 1>&2
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eval $ENV
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TMP_DEST="${3:-\${ZFS_POOL\}/backup/tmp-\${APP_NAME\}-\${PVC\}}"
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${DBG:-:} echo "$TMP_DEST" 1>&2
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eval "TMP_DEST=\"${TMP_DEST}\""
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${DBG:-:} echo "$TMP_DEST" 1>&2
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if [[ -z "$(type -fp zfs)" ]]; then
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printf "ERROR: zfs is not a valid command (is your PATH correct?)\n" 1>&2
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exit 2
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fi
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VALIDATE=()
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zfs list -Ho name "$ZFS_PVC" >/dev/null 2>&1 || VALIDATE=( "${VALIDATE[@]}"
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"ZFS_PVC '$ZFS_PVC' cannot be found")
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zfs list -Ho name "${2}" >/dev/null 2>&1 || VALIDATE=( "${VALIDATE[@]}"
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"Restore source '${2}' cannot be found") || true
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zfs list -Ho name "${TMP_DEST%/*}" >/dev/null 2>&1 || VALIDATE=( "${VALIDATE[@]}"
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"Parent of temp-dset '${TMP_DEST%/*}' cannot be found")
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zfs list -Ho name "$TMP_DEST" >/dev/null 2>&1 && VALIDATE=( "${VALIDATE[@]}"
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"Temp dest '${TMP_DEST}' already exists") || true
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if [[ ${#VALIDATE[@]} -ne 0 ]]; then
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${DBG:-:} echo "" 1>&2
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printf 'ERROR: %s\n' "${VALIDATE[@]}" 1>&2
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exit 1
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fi
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printf '%s\n' \
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"Performing the following actions:" \
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" zfs rename '$ZFS_PVC' '${TMP_DEST}'" \
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" zfs rename '${2}' '$ZFS_PVC'" \
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'' '' \
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'To revert these changes manualy run:' \
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" sudo zfs rename '$ZFS_PVC' '${2}' " \
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" sudo zfs rename '${TMP_DEST}' '$ZFS_PVC' " \
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'' ''
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${ZFS_DO:-:} zfs rename "$ZFS_PVC" "${TMP_DEST}"
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${ZFS_DO:-:} zfs rename "${2}" "$ZFS_PVC"
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