diff --git a/config b/config
index 77ed5cc..c1761f5 100644
--- a/config
+++ b/config
@@ -1,7 +1,16 @@
 #!/usr/bin/env bash
-
+#
+# config
+#
+# This file gives parameters to launch Docker containers for Gissmo projects.
+#
+# PROJECT_DIR: will contains all python libraries and gissmo git repository
+# GISSMO_VERSION: used to generated Gissmo Docker image name.
 
 PROJECT_DIR="/home/olivier/gissmo_project"
 POSTGRES_VERSION="9.5"
 POSTGRES_DOCKER_NAME="gissmo_db"
 DB_VOLUME_NAME="dbdata"
+GIT_BRANCH="restful"
+GISSMO_VERSION="1.5"
+GISSMO_DOCKER_PORT="8002"
diff --git a/launch.sh b/launch.sh
index fe83dc4..cc56679 100755
--- a/launch.sh
+++ b/launch.sh
@@ -4,12 +4,15 @@
 
 ## Default
 PROGRAM=`basename $0`
+docker_cmd=`which docker`
+CURRENT_DIR=$(pwd)
 GIT_URL="git@github.com:eost/gissmo.git"
 GIT_BRANCH="dev"  # Default Git Branch
 GIT_DIR_NAME="gissmo"
 DOCKERFILE_NAME="Dockerfile"
 DB_DIR="/dbdata"
 POSTGRES_VERSION="9.5"
+GISSMO_DOCKER_NAME="gissmo"
 
 ## User
 . config || exit 1
@@ -19,6 +22,7 @@ GISSMO_DIR="${PROJECT_DIR}/${GIT_DIR_NAME}"
 DOCKERFILE="${GISSMO_DIR}/${DOCKERFILE_NAME}"
 
 COMMAND="$1"
+shift 1; ARGS="$@"
 
 
 # METHODS
@@ -44,9 +48,13 @@ show_help() {
   echo -e "  Where COMMAND is one of:"
   echo -e "   - create  Create postgreSQL database volume and postgreSQL Docker container"
   echo -e "   - init    Create project directory as python virtual environment, fetch git repository and install Python dependancies"
+  echo -e "   - migrate Launch migration command: python manage.py migrate"
   echo -e "   - restore "
-  echo -e "   - start   "
-  echo -e "   - stop    "
+  echo -e "   - start   Launch Gissmo Docker container (created by 'create' command) with a name given in GISSMO_DOCKER_NAME variable"
+  echo -e "   - stop    Stop Gissmo Docker container which name is GISSMO_DOCKER_NAME variable content"
+  # TODO: Add clean() command to STOP and DELETE Gissmo Docker container
+  # TODO: Add clean_db() command to STOP and DELETE postgreSQL Docker container
+  # TODO: Add clean_all() command that makes clean() and clean_db()
 }
 
 check_command() {
@@ -54,6 +62,8 @@ check_command() {
     return 0
   elif test $1 == "init"; then
     return 0
+  elif test $1 == "migrate"; then
+    return 0
   elif test $1 == "restore"; then
     return 0
   elif test $1 == "start"; then
@@ -66,11 +76,30 @@ check_command() {
   exit 1
 }
 
-test_create() {
-  docker_cmd=`which docker`
+test_docker_cmd() {
   if test -z "$docker_cmd"; then
     error_and_quit "Docker command not found. Install docker or fill in the PATH."
   fi
+  return 0
+}
+
+test_postgresql_exists() {
+  PSQL_RUNNING=$($docker_cmd inspect --format="{{ .State.Running }}" ${POSTGRES_DOCKER_NAME} 2> /dev/null)
+  if [ $? -eq 1 ]; then
+    error_and_quit "postgreSQL Docker container not found: ${POSTGRES_DOCKER_NAME}. Please launch '$PROGRAM create' first."
+  fi
+}
+
+test_postgresql_launched() {
+  PSQL_RUNNING=$($docker_cmd inspect --format="{{ .State.Running }}" ${POSTGRES_DOCKER_NAME} 2> /dev/null)
+  if test $PSQL_RUNNING == "false"; then
+    return 1
+  fi
+  return 0
+}
+
+test_create() {
+  test_docker_cmd
   if test -z "$DB_DIR"; then
     error_and_quit "No database directory given (DB_DIR in config file)."
   fi
@@ -105,7 +134,7 @@ init() {
   sudo apt-get install -qq libpq-dev python3-dev python-virtualenv git-core python3-pip || error_and_quit "Dependancies installation failed."
   info "Dependancies via apt-get checked/installed."
   if ! test -d "$GISSMO_DIR/.git/"; then
-    git clone -q $GIT_URL $GISSMO_DIR || error_and_quit "Fetch Git repository failed."
+    git clone -q -b "$GIT_BRANCH" "$GIT_URL" "$GISSMO_DIR" || error_and_quit "Fetch Git repository failed."
   else
     GIT_WORK_TREE="${GISSMO_DIR}/" GIT_DIR="${GISSMO_DIR}/.git/" git pull -q origin master || error_and_quit "Pull command on Git repository failed."
   fi
@@ -117,20 +146,61 @@ init() {
   deactivate || error_and_quit "Failed exiting python virtual environment."
 }
 
+test_migrate() {
+  test_start
+}
+
+migrate() {
+  test_migrate
+  $docker_cmd run -it --rm --link ${POSTGRES_DOCKER_NAME}:db gissmo:${GISSMO_VERSION} python manage.py migrate || error_and_quit "Failed to launch Gissmo migration."
+}
+
 restore() {
   not_implemented
 }
 
+test_start() {
+  if test -z "$GISSMO_VERSION"; then
+    error_and_quit "No Gissmo version given (GISSMO_VERSION in config file)."
+  fi
+  if test -z "$GISSMO_DOCKER_PORT"; then
+    error_and_quit "No Gissmo Docker container port given (GISSMO_DOCKER_PORT in config file)."
+  fi
+  test_postgresql_exists
+}
+
 start() {
-  not_implemented
+  test_start
+  # Build Gissmo Docker images if missing
+  if [[ "$($docker_cmd images -q gissmo:${GISSMO_VERSION} 2> /dev/null)" == "" ]]; then
+    cd $GISSMO_DIR
+    $docker_cmd build -t gissmo:${GISSMO_VERSION} . || error_and_quit "Failed to build Gissmo Docker container."
+    cd $CURRENT_DIR
+  fi
+  # Check postgreSQL Docker container exists and is launched.
+  test_postgresql_launched
+  if [ $? -eq 1 ]; then
+    $docker_cmd start ${POSTGRES_DOCKER_NAME}
+  fi
+  # Run existing Docker container, otherwise create a new one
+  GISSMO_RUNNING=$($docker_cmd inspect --format="{{ .State.Running }}" ${GISSMO_DOCKER_NAME} 2> /dev/null)
+  if [ $? -eq 1 ]; then
+    $docker_cmd run -it --rm --link ${POSTGRES_DOCKER_NAME}:db -p ${GISSMO_DOCKER_PORT}:8000 --name ${GISSMO_DOCKER_NAME} gissmo:${GISSMO_VERSION} $ARGS || error_and_quit "Failed to create and launch ${GISSMO_DOCKER_NAME} container."
+  else
+    error_and_quit "${GISSMO_DOCKER_NAME} is already launched!"
+  fi
+}
+
+test_stop(){
+  GISSMO_RUNNING=$($docker_cmd inspect --format="{{ .State.Running }}" ${GISSMO_DOCKER_NAME})
+  if [ $? -eq 1 ]; then
+    error_and_quit "Gissmo Docker container not found: ${GISSMO_DOCKER_NAME}. Please launch '$PROGRAM launch' first."
+  fi
 }
 
 stop() {
-  not_implemented
-}
-
-generate_database_persistent_volume() {
-  not_implemented
+  $docker_cmd stop $GISSMO_DOCKER_NAME || error_and_quit "Failed to stop $GISSMO_DOCKER_NAME Docker container."
+  info "${GISSMO_DOCKER_NAME} Docker container stopped successfully."
 }