115 lines
3.4 KiB
Bash
115 lines
3.4 KiB
Bash
|
#!/bin/bash
|
||
|
|
#
|
||
|
|
#This script will initialise the required files and directories for automatic backup of Docker data.
|
||
|
|
#
|
||
|
|
|
||
|
|
helpFunction()
|
||
|
|
{
|
||
|
|
echo ""
|
||
|
|
echo "Usage: $0 -i INPUT -c CONFIG_DIR -l LOG_DIR"
|
||
|
|
echo -e "\t-i Input folder to create a repository for."
|
||
|
|
echo -e "\t-c Location of config directory where the repository, password and uuid files are stored."
|
||
|
|
echo -e "\t-n Name of the Docker container. Required to stop the container and restart it before backing up."
|
||
|
|
exit 1 # Exit script after printing help
|
||
|
|
}
|
||
|
|
|
||
|
|
while getopts "i:c:n:f" opt
|
||
|
|
do
|
||
|
|
case "$opt" in
|
||
|
|
i ) INPUT="$OPTARG" ;;
|
||
|
|
c ) CONFIG_DIR="$OPTARG" ;;
|
||
|
|
n ) CONTAINER_NAME="$OPTARG" ;;
|
||
|
|
f ) FORCE=true ;;
|
||
|
|
? ) helpFunction ;; # Print helpFunction in case parameter is non-existent
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
# Verify that required parameters are present
|
||
|
|
|
||
|
|
set -a && source .env && set +a
|
||
|
|
|
||
|
|
REQUIRED_PARAMS=(
|
||
|
|
INPUT
|
||
|
|
CONFIG_DIR
|
||
|
|
CONTAINER_NAME
|
||
|
|
EXTERNAL_STORAGE_URL
|
||
|
|
EXTERNAL_STORAGE_USER
|
||
|
|
EXTERNAL_STORAGE_PORT
|
||
|
|
EXTERNAL_STORAGE_ROOT_DIR
|
||
|
|
INTERNAL_STORAGE_ROOT_DIR
|
||
|
|
)
|
||
|
|
|
||
|
|
for variable in "${REQUIRED_PARAMS[@]}" ; do
|
||
|
|
if [ -z "${!variable+x}" ]; then
|
||
|
|
echo "$variable is not set. Make sure your .env file is complete, and you have passed in all required flags.";
|
||
|
|
exit;
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
echo $FORCE
|
||
|
|
|
||
|
|
# Parse the input to create the SERVICE variable (lower case)
|
||
|
|
SERVICE=${INPUT##*/}
|
||
|
|
SERVICE=${SERVICE,,}
|
||
|
|
|
||
|
|
# Set the location of the internal repo
|
||
|
|
INTERNAL_REPO_LOCATION=$INTERNAL_STORAGE_ROOT_DIR/$SERVICE
|
||
|
|
|
||
|
|
|
||
|
|
# Generate random password and UUID
|
||
|
|
PASSWORD=$(tr -dc 'A-Za-z0-9!?%=' < /dev/urandom | head -c 50)
|
||
|
|
UUID=$(uuidgen)
|
||
|
|
|
||
|
|
# Set filenames
|
||
|
|
REPO_FILE_PATH="$CONFIG_DIR/${SERVICE}_repository"
|
||
|
|
PWD_FILE_PATH="$CONFIG_DIR/${SERVICE}_password"
|
||
|
|
UUID_FILE_PATH="$CONFIG_DIR/${SERVICE}_uuid"
|
||
|
|
CONTAINER_NAME_FILE_PATH="$CONFIG_DIR/${SERVICE}_container_name"
|
||
|
|
|
||
|
|
|
||
|
|
# Make the config directory if it does not already exist
|
||
|
|
if [ ! -d "$CONFIG_DIR" ]; then
|
||
|
|
mkdir $CONFIG_DIR
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Run the code only if the config files for the service does not already exist, or if force overwrite is specified
|
||
|
|
if [[ ! -f "$CONFIG_DIR/${SERVICE}_repository" ]] || [[ $FORCE == true ]]; then
|
||
|
|
# Prompt user if they are sure whether to force overwrite
|
||
|
|
if [[ $FORCE == true ]]; then
|
||
|
|
while true; do
|
||
|
|
read -p "The config for ${INPUT} already exists, but you specified to force overwrite. This will also delete what is already in the restic repository and recreate an empty repo. Are you sure? [y/n] " yn
|
||
|
|
case $yn in
|
||
|
|
[Yy]* ) break;;
|
||
|
|
[Nn]* ) echo "Exiting without overwriting..."; exit;;
|
||
|
|
* ) echo "Please anser yes or no."
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Write the config files
|
||
|
|
echo $INTERNAL_REPO_LOCATION > $REPO_FILE_PATH
|
||
|
|
echo $PASSWORD > $PWD_FILE_PATH
|
||
|
|
echo $UUID > $UUID_FILE_PATH
|
||
|
|
echo $CONTAINER_NAME > $CONTAINER_NAME_FILE_PATH
|
||
|
|
|
||
|
|
echo "Created required backup directories for $INPUT"
|
||
|
|
echo "Password: $PASSWORD"
|
||
|
|
echo "UUID: $UUID"
|
||
|
|
echo "Make sure to note this down in your password manager to be able to decrypt the repositories, and to map the repositories on the external storage"
|
||
|
|
|
||
|
|
# Make the internal restic repository
|
||
|
|
if [ -d "$INTERNAL_REPO_LOCATION" ]; then
|
||
|
|
cp -r $INTERNAL_REPO_LOCATION ${INTERNAL_REPO_LOCATION}_old_$(date +%Y%m%d_%H%M%S)
|
||
|
|
rm -r $INTERNAL_REPO_LOCATION
|
||
|
|
fi
|
||
|
|
|
||
|
|
restic init --repository-file $REPO_FILE_PATH -p $PWD_FILE_PATH
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
else
|
||
|
|
echo "Repository config already exists for the service you specified. You can override this by passing the -f flag."
|
||
|
|
|
||
|
|
fi
|
||
|
|
|