From da94a29f5b52ce6a0a911b2993811718a069c110 Mon Sep 17 00:00:00 2001
From: Bitnami Bot <containers-bot@bitnami.com>
Date: Fri, 19 Jun 2020 15:57:56 +0000
Subject: [PATCH] 5.0.9-debian-10-r52 release

---
 .../redis-sentinel/5.0/debian-10/Dockerfile   |  2 +-
 .../prebuildfs/opt/bitnami/scripts/libfs.sh   | 17 ++++
 .../opt/bitnami/scripts/libpersistence.sh     | 99 +++++++++++++++++++
 bitnami/redis-sentinel/README.md              |  2 +-
 4 files changed, 118 insertions(+), 2 deletions(-)
 create mode 100644 bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libpersistence.sh

diff --git a/bitnami/redis-sentinel/5.0/debian-10/Dockerfile b/bitnami/redis-sentinel/5.0/debian-10/Dockerfile
index 685bf047890a..3e52a7ef78fc 100644
--- a/bitnami/redis-sentinel/5.0/debian-10/Dockerfile
+++ b/bitnami/redis-sentinel/5.0/debian-10/Dockerfile
@@ -18,7 +18,7 @@ RUN apt-get update && apt-get upgrade -y && \
 COPY rootfs /
 RUN /opt/bitnami/scripts/redis-sentinel/postunpack.sh
 ENV BITNAMI_APP_NAME="redis-sentinel" \
-    BITNAMI_IMAGE_VERSION="5.0.9-debian-10-r51"
+    BITNAMI_IMAGE_VERSION="5.0.9-debian-10-r52"
 
 EXPOSE 26379
 
diff --git a/bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libfs.sh b/bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libfs.sh
index 251a47dc7052..c7c94c3ba988 100644
--- a/bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libfs.sh
+++ b/bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libfs.sh
@@ -59,6 +59,23 @@ is_dir_empty() {
     fi
 }
 
+########################
+# Checks whether a mounted directory is empty or not
+# arguments:
+#   $1 - directory
+# returns:
+#   boolean
+#########################
+is_mounted_dir_empty() {
+    local dir="${1:?missing directory}"
+
+    if is_dir_empty "$dir" || find "$dir" -mindepth 1 -maxdepth 1 -not -name ".snapshot" -not -name "lost+found" -exec false {} +; then
+        true
+    else
+        false
+    fi
+}
+
 ########################
 # Checks whether a file can be written to or not
 # arguments:
diff --git a/bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libpersistence.sh b/bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libpersistence.sh
new file mode 100644
index 000000000000..d4a0b32e1132
--- /dev/null
+++ b/bitnami/redis-sentinel/5.0/debian-10/prebuildfs/opt/bitnami/scripts/libpersistence.sh
@@ -0,0 +1,99 @@
+#!/bin/bash
+#
+# Bitnami persistence library
+# Used for bringing persistence capabilities to applications that don't have clear separation of data and logic
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/libfs.sh
+. /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/libversion.sh
+
+# Functions
+
+########################
+# Persist an application directory
+# Globals:
+#   BITNAMI_ROOT_DIR
+#   BITNAMI_VOLUME_DIR
+# Arguments:
+#   $1 - App folder name
+#   $2 - List of app files to persist
+# Returns:
+#   true if all steps succeeded, false otherwise
+#########################
+persist_app() {
+    local -r app="${1:?missing app}"
+    local -a files_to_restore
+    read -r -a files_to_persist <<< "$2"
+    local -r install_dir="${BITNAMI_ROOT_DIR}/${app}"
+    local -r persist_dir="${BITNAMI_VOLUME_DIR}/${app}"
+    # Persist the individual files
+    if [[ "${#files_to_persist[@]}" -lt 0 ]]; then
+        warn "No files are configured to be persisted"
+        return
+    fi
+    local file_to_persist_origin file_to_persist_destination file_to_persist_destination_folder
+    for file_to_persist in "${files_to_persist[@]}"; do
+        file_to_persist_origin="${install_dir}/${file_to_persist}"
+        file_to_persist_destination="${persist_dir}/${file_to_persist}"
+        file_to_persist_destination_folder="$(dirname "$file_to_persist_destination")"
+        mkdir -p "$file_to_persist_destination_folder"
+        cp -Lr "$file_to_persist_origin" "$file_to_persist_destination_folder"
+    done
+    # Install the persisted files into the installation directory, via symlinks
+    restore_persisted_app "$@"
+}
+
+########################
+# Restore a persisted application directory
+# Globals:
+#   BITNAMI_ROOT_DIR
+#   BITNAMI_VOLUME_DIR
+#   FORCE_MAJOR_UPGRADE
+# Arguments:
+#   $1 - App folder name
+#   $2 - List of app files to restore
+# Returns:
+#   true if all steps succeeded, false otherwise
+#########################
+restore_persisted_app() {
+    local -r app="${1:?missing app}"
+    local -a files_to_restore
+    read -r -a files_to_restore <<< "$2"
+    local -r install_dir="${BITNAMI_ROOT_DIR}/${app}"
+    local -r persist_dir="${BITNAMI_VOLUME_DIR}/${app}"
+    # Restore the individual persisted files
+    if [[ "${#files_to_restore[@]}" -lt 0 ]]; then
+        warn "No persisted files are configured to be restored"
+        return
+    fi
+    local file_to_restore_origin file_to_restore_destination
+    for file_to_restore in "${files_to_restore[@]}"; do
+        # We use realpath to ensure that the case of '.' is covered and the directory is removed
+        file_to_restore_origin="$(realpath "${install_dir}/${file_to_restore}")"
+        file_to_restore_destination="$(realpath "${persist_dir}/${file_to_restore}")"
+        rm -rf "$file_to_restore_origin"
+        ln -sfn "$file_to_restore_destination" "$file_to_restore_origin"
+    done
+}
+
+########################
+# Check if an application directory was already persisted
+# Globals:
+#   BITNAMI_VOLUME_DIR
+# Arguments:
+#   $1 - App folder name
+# Returns:
+#   true if all steps succeeded, false otherwise
+#########################
+is_app_initialized() {
+    local -r app="${1:?missing app}"
+    local -r persist_dir="${BITNAMI_VOLUME_DIR}/${app}"
+    if ! is_mounted_dir_empty "$persist_dir"; then
+        true
+    else
+        false
+    fi
+}
diff --git a/bitnami/redis-sentinel/README.md b/bitnami/redis-sentinel/README.md
index eadd16ec01d5..110d8d034720 100644
--- a/bitnami/redis-sentinel/README.md
+++ b/bitnami/redis-sentinel/README.md
@@ -43,7 +43,7 @@ Learn more about the Bitnami tagging policy and the difference between rolling t
 
 
 * [`6.0-debian-10`, `6.0.5-debian-10-r9`, `6.0`, `6.0.5`, `latest` (6.0/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-redis-sentinel/blob/6.0.5-debian-10-r9/6.0/debian-10/Dockerfile)
-* [`5.0-debian-10`, `5.0.9-debian-10-r51`, `5.0`, `5.0.9` (5.0/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-redis-sentinel/blob/5.0.9-debian-10-r51/5.0/debian-10/Dockerfile)
+* [`5.0-debian-10`, `5.0.9-debian-10-r52`, `5.0`, `5.0.9` (5.0/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-redis-sentinel/blob/5.0.9-debian-10-r52/5.0/debian-10/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/redis-sentinel GitHub repo](https://github.com/bitnami/bitnami-docker-redis-sentinel).