Change default data path to /data (#227)

This PR change the default data path to /data as it's more common

Author: guanzhousongmicrosoft

.github/containers/Build-Ubuntu/Dockerfile_gateway

@@ -54,7 +54,7 @@ ENV LANGUAGE=en_US.UTF-8 \
 ENV ENFORCE_SSL="true" \
     CERT_PATH="" \
     KEY_FILE="" \
-    DATA_PATH="/home/documentdb/postgresql/data" \
+    DATA_PATH="/data" \
     DOCUMENTDB_PORT="10260" \
     ENABLE_TELEMETRY="false" \
     LOG_LEVEL="info" \

scripts/emulator_entrypoint.sh

@@ -22,7 +22,7 @@ Optional arguments:
   --data-path [PATH]    Specify a directory for data. Frequently used with docker run --mount option 
                         (e.g. if DATA_PATH=/usr/documentdb/data, you'd add an option like the following to your 
                         docker run: --mount type=bind,source=./.local/data,target=/usr/documentdb/data)
-                        Defaults to /home/documentdb/postgresql/data
+                        Defaults to /data
                         Overrides DATA_PATH environment variable.
   --documentdb-port     The port of the DocumentDB endpoint on the container. 
                         You still need to publish this port (e.g. -p 10260:10260).
@@ -149,7 +149,7 @@ done
 
 # Set default values if not provided
 export OWNER=${OWNER:-$(whoami)}
-export DATA_PATH=${DATA_PATH:-/home/documentdb/postgresql/data}
+export DATA_PATH=${DATA_PATH:-/data}
 export DOCUMENTDB_PORT=${DOCUMENTDB_PORT:-10260}
 export POSTGRESQL_PORT=${POSTGRESQL_PORT:-9712}
 export USERNAME=${USERNAME:-default_user}

scripts/start_oss_server.sh

@@ -55,7 +55,7 @@ if [ "$help" == "true" ]; then
     echo "${green}[-x] - start oss server with documentdb_distributed extension"
     echo "${green}[-e] - optional argument. Allows PostgreSQL access from any IP address"
     echo "${green}[-p <port>] - optional argument. specifies the port for the coordinator"
-    echo "${green}if postgresDir not specified assumed to be /home/documentdb/postgresql/data"
+    echo "${green}if postgresDir not specified assumed to be /data"
     exit 1;
 fi
 
@@ -97,7 +97,7 @@ scriptDir="$( cd -P "$( dirname "$source" )" && pwd )"
 . $scriptDir/utils.sh
 
 if [ -z $postgresDirectory ]; then
-    postgresDirectory="/home/documentdb/postgresql/data"
+    postgresDirectory="/data"
 fi
 
 # Only initialize if directory doesn't exist, is empty, or doesn't contain a valid PostgreSQL data directory