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dolt/docker/docker-entrypoint.sh
2025-09-17 14:17:51 -07:00

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#!/bin/bash
set -eo pipefail
# logging functions
mysql_log() {
local type="$1"; shift
local text="$*"; if [ "$#" -eq 0 ]; then text="$(cat)"; fi
local dt; dt="$(date --rfc-3339=seconds)"
local color_reset="\033[0m"
local color
case "$type" in
Warn) color="\033[1;33m" ;; # yellow
ERROR) color="\033[1;31m" ;; # red
*) color="" ;;
esac
printf '%b%s [%s] [Entrypoint]: %s%b\n' "$color" "$dt" "$type" "$text" "$color_reset"
}
mysql_note() {
mysql_log Note "$@"
}
mysql_warn() {
mysql_log Warn "$@" >&2
}
mysql_error() {
mysql_log ERROR "$@" >&2
mysql_note "Remove this container with 'docker rm -f <container_name>' before retrying"
exit 1
}
docker_process_sql() {
dolt sql
}
CONTAINER_DATA_DIR="/var/lib/dolt"
INIT_COMPLETED="$CONTAINER_DATA_DIR/.init_completed"
DOLT_CONFIG_DIR="/etc/dolt/doltcfg.d"
SERVER_CONFIG_DIR="/etc/dolt/servercfg.d"
DOLT_ROOT_PATH="/.dolt"
check_for_dolt() {
local dolt_bin=$(which dolt)
if [ ! -x "$dolt_bin" ]; then
mysql_error "dolt binary executable not found"
fi
}
get_env_var() {
local var_name="$1"
local mysql_var="MYSQL_${var_name}"
local dolt_var="DOLT_${var_name}"
if [ -n "${!mysql_var}" ]; then
echo "${!mysql_var}"
elif [ -n "${!dolt_var}" ]; then
echo "${!dolt_var}"
else
echo ""
fi
}
get_env_var_name() {
local var_name="$1"
local mysql_var="MYSQL_${var_name}"
local dolt_var="DOLT_${var_name}"
if [ -n "${!mysql_var}" ]; then
echo "MYSQL_${var_name}"
elif [ -n "${!dolt_var}" ]; then
echo "DOLT_${var_name}"
else
echo "MYSQL_${var_name}/DOLT_${var_name}"
fi
}
# arg $1 is the directory to search in
# arg $2 is the type file to search for
get_config_file_path_if_exists() {
CONFIG_PROVIDED=
local CONFIG_DIR=$1
local FILE_TYPE=$2
if [ -d "$CONFIG_DIR" ]; then
mysql_note "Checking for config provided in $CONFIG_DIR"
local number_of_files_found=$(find "$CONFIG_DIR" -type f -name "*.$FILE_TYPE" | wc -l)
if [ "$number_of_files_found" -gt 1 ]; then
CONFIG_PROVIDED=
mysql_warn "multiple config file found in $CONFIG_DIR, using default config"
elif [ "$number_of_files_found" -eq 1 ]; then
local files_found=$(ls "$CONFIG_DIR"/*"$FILE_TYPE")
mysql_note "$files_found file is found"
CONFIG_PROVIDED=$files_found
else
CONFIG_PROVIDED=
fi
fi
}
# taken from https://github.com/docker-library/mysql/blob/master/8.0/docker-entrypoint.sh
# this function will run files found in /docker-entrypoint-initdb.d directory BEFORE server is started
# usage: docker_process_init_files [file [file [...]]]
# ie: docker_process_init_files /always-initdb.d/*
# process initializer files, based on file extensions
docker_process_init_files() {
mysql_note "Running init scripts"
local f
for f; do
case "$f" in
*.sh)
# https://github.com/docker-library/postgres/issues/450#issuecomment-393167936
# https://github.com/docker-library/postgres/pull/452
if [ -x "$f" ]; then
mysql_note "$0: running $f"
if ! "$f"; then
mysql_error "Failed to execute init script '$f'"
fi
else
mysql_note "$0: sourcing $f"
if ! . "$f"; then
mysql_error "Failed to source init script '$f'"
fi
fi
;;
*.sql) mysql_note "$0: running $f"; docker_process_sql < "$f"; echo ;;
*.sql.bz2) mysql_note "$0: running $f"; bunzip2 -c "$f" | docker_process_sql; echo ;;
*.sql.gz) mysql_note "$0: running $f"; gunzip -c "$f" | docker_process_sql; echo ;;
*.sql.xz) mysql_note "$0: running $f"; xzcat "$f" | docker_process_sql; echo ;;
*.sql.zst) mysql_note "$0: running $f"; zstd -dc "$f" | docker_process_sql; echo ;;
*) mysql_warn "$0: ignoring $f" ;;
esac
echo
done
}
# if there is config file provided through /etc/dolt/doltcfg.d,
# we overwrite $HOME/.dolt/config_global.json file with this file.
set_dolt_config_if_defined() {
get_config_file_path_if_exists "$DOLT_CONFIG_DIR" "json"
if [ ! -z "$CONFIG_PROVIDED" ]; then
if ! /bin/cp -rf "$CONFIG_PROVIDED" "$HOME/$DOLT_ROOT_PATH/config_global.json" 2>&1; then
mysql_error "Failed to copy config file from '$CONFIG_PROVIDED' to '$HOME/$DOLT_ROOT_PATH/config_global.json'. Check file permissions and paths."
fi
fi
}
create_default_database_from_env() {
local user
local password
local database
database=$(get_env_var "DATABASE")
user=$(get_env_var "USER")
password=$(get_env_var "PASSWORD")
if [ -n "$database" ]; then
mysql_note "Creating database '${database}'"
local db_output
if ! db_output=$(dolt sql -q "CREATE DATABASE IF NOT EXISTS \`$database\`;" 2>&1); then
mysql_error "Failed to create database '$database'. Error: $db_output"
fi
fi
if [ "$user" = 'root' ]; then
# TODO: add ALLOW_EMPTY_PASSWORD and RANDOM_ROOT_PASSWORD support
mysql_error <<-EOF
$(get_env_var_name "USER")="root", $(get_env_var_name "USER") and $(get_env_var_name "PASSWORD") are for configuring a regular user and cannot be used for the root user
Remove $(get_env_var_name "USER")="root" and use the following to control the root user password:
- DOLT_ROOT_PASSWORD
EOF
fi
if [ -n "$user" ] && [ -z "$password" ]; then
mysql_error "$(get_env_var_name "USER") specified, but missing $(get_env_var_name "PASSWORD"); user creation requires a password."
elif [ -z "$user" ] && [ -n "$password" ]; then
mysql_warn "$(get_env_var_name "PASSWORD") specified, but missing $(get_env_var_name "USER"); password will be ignored"
return
fi
if [ -n "$user" ]; then
# Get user host from DOLT_USER_HOST/MYSQL_USER_HOST, fall back to DOLT_ROOT_HOST, then localhost
local user_host
user_host=$(get_env_var "USER_HOST")
user_host="${user_host:-${DOLT_ROOT_HOST:-localhost}}"
mysql_note "Creating user '${user}'"
if ! dolt sql -q "CREATE USER IF NOT EXISTS '$user'@'$user_host' IDENTIFIED BY '$password';" >/dev/null 2>&1; then
mysql_error "Failed to create user '$user'. Check if user already exists or if there are permission issues."
fi
# Grant basic server access
mysql_note "Granting server access to user '${user}'"
if ! dolt sql -q "GRANT USAGE ON *.* TO '$user'@'$user_host';" >/dev/null 2>&1; then
mysql_error "Failed to grant server access to user '$user'"
fi
if [ -n "$database" ]; then
mysql_note "Giving user '${user}' access to schema '${database}'"
if ! dolt sql -q "GRANT ALL ON \`$database\`.* TO '$user'@'$user_host';" >/dev/null 2>&1; then
mysql_error "Failed to grant permissions to user '$user' on database '$database'"
fi
fi
fi
}
_main() {
# check for dolt binary executable
check_for_dolt
local dolt_version
dolt_version=$(dolt version | grep 'dolt version' | cut -f3 -d " ")
mysql_note "Entrypoint script for Dolt Server $dolt_version starting..."
declare -g CONFIG_PROVIDED
# dolt config will be set if user provided a single json file in /etc/dolt/doltcfg.d directory.
# It will overwrite config_global.json file in $HOME/.dolt
set_dolt_config_if_defined
# if there is a single yaml provided in /etc/dolt/servercfg.d directory,
# it will be used to start the server with --config flag
get_config_file_path_if_exists "$SERVER_CONFIG_DIR" "yaml"
if [ ! -z "$CONFIG_PROVIDED" ]; then
set -- "$@" --config="$CONFIG_PROVIDED"
fi
# TODO: add support for MYSQL_ROOT_HOST and MYSQL_ROOT_PASSWORD
# Note: User creation will happen after server starts to avoid conflicts with default users
if [[ ! -f $INIT_COMPLETED ]]; then
# run any file provided in /docker-entrypoint-initdb.d directory before the server starts
if ls /docker-entrypoint-initdb.d/* >/dev/null 2>&1; then
docker_process_init_files /docker-entrypoint-initdb.d/*
else
mysql_warn "No files found in /docker-entrypoint-initdb.d/ to process"
fi
touch $INIT_COMPLETED
fi
# Start server in background for user setup
mysql_note "Starting Dolt server in background..."
dolt sql-server --host=0.0.0.0 --port=3306 "$@" > /tmp/server.log 2>&1 &
local server_pid=$!
# Wait for server to be ready
local max_attempts=30
local attempt=0
while [ $attempt -lt $max_attempts ]; do
if dolt sql -q "SELECT 1;" >/dev/null 2>&1; then
mysql_note "Server initialization complete!"
break
fi
sleep 1
attempt=$((attempt + 1))
done
if [ $attempt -eq $max_attempts ]; then
mysql_error "Server failed to start within 30 seconds"
fi
# Create root user with the specified host (defaults to localhost if not specified)
local root_host="${DOLT_ROOT_HOST:-localhost}"
mysql_note "Ensuring root@${root_host} superuser exists with password"
# Ensure root user exists with correct password and permissions
mysql_note "Configuring root@${root_host} user"
dolt sql -q "CREATE USER IF NOT EXISTS 'root'@'${root_host}' IDENTIFIED BY '${DOLT_ROOT_PASSWORD}'; ALTER USER 'root'@'${root_host}' IDENTIFIED BY '${DOLT_ROOT_PASSWORD}'; GRANT ALL ON *.* TO 'root'@'${root_host}' WITH GRANT OPTION;" >/dev/null 2>&1 || mysql_error "Failed to configure root@${root_host} user."
# If DOLT_DATABASE or MYSQL_DATABASE has been specified, create the database if it does not exist
create_default_database_from_env
# Show what users exist for debugging
mysql_note "Current users in the system:"
dolt sql -q "SELECT User, Host FROM mysql.user;" 2>&1 | grep -v "^$" || mysql_warn "Could not list users"
mysql_note "Reattaching to server process..."
cat /tmp/server.log
# Kill the background process and restart in foreground to show live output
kill $server_pid 2>/dev/null || true
wait $server_pid 2>/dev/null || true
# Start server in foreground to show live output
exec dolt sql-server --host=0.0.0.0 --port=3306 "$@"
}
_main "$@"