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docker.sh

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+#!/bin/bash
+
+# Author : gattazr <[email protected]>
+# Date: 16/01/2016
+
+PROG_NAME=$(basename $0)
+CONTAINER_NAME="nachosDev"
+CONTAINER_IMAGE="quentinfa/as_ricm4_nachos"
+CONTAINER_ARGS="-ti -v $(pwd)/code/:/nachos --workdir='/nachos'"
+CONTAINER_COMMAND=""
+CONTAINER_ID=""
+CONTAINER_STATUS=""
+
+#######################################
+# Print the script help
+# Arguments:
+#     None
+# Returns:
+#     None
+#######################################
+print_help(){
+    echo -e "Usage: $PROG_NAME [start|stop|shell|delete|status]"
+    echo -e "Script managing a docker image run as a daemon container and can start new shell on it\n"
+
+    echo -e "  start  \t\tCreate and start a daemon container. Restart if it was already created."
+    echo -e "  stop   \t\tStop the daemon container"
+    echo -e "  shell  \t\tStart a shell session on the container"
+    echo -e "  remove \t\tRemove the daemon container"
+    echo -e "  status \t\tReturn the status of the container"
+}
+
+
+#######################################
+# Update the CONTAINER_ID and CONTAINER_STATUS globals
+# Globals:
+#     CONTAINER_NAME
+#     CONTAINER_ID
+#     CONTAINER_STATUS
+# Arguments:
+#     None
+# Returns:
+#     None
+#######################################
+get_container_info(){
+    wInfoString=$(docker ps -aq --filter "name=$CONTAINER_NAME" --format "{{.ID}}:{{.Status}}")
+    IFS=': ' read -r -a wInfos <<< "$wInfoString"
+    CONTAINER_ID="${wInfos[0]}"
+    CONTAINER_STATUS="${wInfos[1]}"
+}
+
+#######################################
+# Create and start a docker container. If a container already exists, it is restarted
+# Globals:
+#     CONTAINER_STATUS
+#     CONTAINER_ID
+#     CONTAINER_ARGS
+#     CONTAINER_NAME
+#     CONTAINER_IMAGE
+#     CONTAINER_COMMAND
+# Arguments:
+#     None
+# Returns:
+#     integer: exit code
+#######################################
+start_container(){
+
+    # Check if the action can be done
+    if [ "$CONTAINER_STATUS" == "Up" ]; then
+        echo "container is already running"
+        return -1
+    fi
+
+    # Create and start container or restart existing one
+    if [ "$CONTAINER_STATUS" == "Exited" ]; then
+        wAction="restarted"
+        echo "Restarting an existing container"
+        docker restart $CONTAINER_ID
+    else
+        wAction="started"
+        echo "Creating and starting a new container"
+        docker run -d $CONTAINER_ARGS --name=$CONTAINER_NAME $CONTAINER_IMAGE $CONTAINER_COMMAND
+    fi
+
+    # Update the container info globals and print infos to user if it was successfull
+    get_container_info
+    if [ "$CONTAINER_STATUS" == "Up" ]; then
+        echo -e "Docker container successfully $wAction with id $CONTAINER_ID"
+    else
+        return -1
+    fi
+
+    return 0
+}
+
+#######################################
+# Stop the container if it is running
+# Globals:
+#     CONTAINER_STATUS
+#     CONTAINER_ID
+# Arguments:
+#     None
+# Returns:
+#     integer: exit code
+#######################################
+stop_container(){
+
+    # Check if the action can be done
+    if [ "$CONTAINER_STATUS" != "Up" ]; then
+        echo -e "Container is not running"
+        return -1
+    fi
+
+    # Stop the container
+    docker stop $CONTAINER_ID
+
+    # Print infos to user if it was successfull
+    if [ $? -eq 0 ]; then
+        echo "The container was successfully stopped"
+    else
+        return -1
+    fi
+
+    return 0
+}
+
+#######################################
+# Start a shell session on the container
+# Globals:
+#     CONTAINER_STATUS
+#     CONTAINER_ID
+# Arguments:
+#     None
+# Returns:
+#     integer: exit code
+#######################################
+shell_container(){
+
+    # Check if the action can be done
+    if [ "$CONTAINER_STATUS" != "Up" ]; then
+        echo -e "Container is not running"
+        return -1
+    fi
+
+    # Create a new shell on the container
+    docker exec -t -i $CONTAINER_ID /bin/bash
+
+    # Exit with an error code if there was an error
+    if [ $? -ne 0 ]; then
+        return -1
+    fi
+
+    return 0
+}
+
+#######################################
+# Remove the daemon container
+# Globals:
+#     CONTAINER_STATUS
+#     CONTAINER_ID
+# Arguments:
+#     None
+# Returns:
+#     integer: exit code
+#######################################
+remove_container(){
+
+    # Check if the action can be done
+    if [ "$CONTAINER_STATUS" != "Exited" ]; then
+        echo "The container is running and connot be removed. You must stop it first."
+        return -1
+    fi
+
+    # Remove the container
+    docker rm $CONTAINER_ID
+
+    # Print infos to user if it was successfull
+    if [ $? -eq 0 ]; then
+        echo "The container was successfully removed"
+    else
+        return -1
+    fi
+
+    return 0
+}
+
+#######################################
+# Start a shell session on the container
+# Globals:
+#     CONTAINER_STATUS
+#     CONTAINER_ID
+# Arguments:
+#     None
+# Returns:
+#     integer: exit code
+#######################################
+status_container(){
+
+    # Print infos to user
+    if [ -z $CONTAINER_ID ]; then
+        echo "The container doesn't exist."
+    else
+        echo "The container status is '$CONTAINER_STATUS'"
+    fi
+
+    return 0
+}
+
+
+
+
+if [ $# -ne 1 ]; then
+    echo -e "$PROG_NAME: The program was not started with the right arguments\n"
+    print_help
+    exit -1
+fi
+
+# Update the container informations
+get_container_info
+wResult=0
+
+case "$1" in
+
+"start")
+    start_container
+    wResult=$?
+    ;;
+
+"stop")
+    stop_container
+    wResult=$?
+    ;;
+
+"shell")
+    shell_container
+    wResult=$?
+    ;;
+
+"remove")
+    remove_container
+    wResult=$?
+    ;;
+
+
+"status")
+    status_container
+    wResult=$?
+    ;;
+
+
+*)
+    echo -e "$PROG_NAME: unknown argument $1\n"
+    print_help
+    exit -1
+    ;;
+esac
+
+exit $wResultId

install_docker_as.sh

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+#!/bin/bash
+echo "Adding new key to install Docker..."
+sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
+
+if [[ `lsb_release -rs` == "14.04" ]]
+then
+   echo "deb https://apt.dockerproject.org/repo ubuntu-trusty main" > /etc/apt/sources.list.d/docker.list
+elif [[ `lsb_release -rs` == "15.04" ]]
+then
+   echo "deb https://apt.dockerproject.org/repo ubuntu-vivid main" > /etc/apt/sources.list.d/docker.list
+elif [[ `lsb_release -rs` == "15.10" ]]
+then
+   echo "deb https://apt.dockerproject.org/repo ubuntu-wily main" > /etc/apt/sources.list.d/docker.list
+fi
+
+echo "Getting package list"
+apt-get update
+echo "Purge of the old depo (if existing)"
+apt-get purge lxc-docker
+apt-cache policy docker-engine
+
+if [[ `lsb_release -rs` == "15.04" ]] || [[ `lsb_release -rs` == "14.04" ]] || [[ `lsb_release -rs` == "15.10" ]]
+then
+   echo "Installing special packages (14,04, 15.04 or 15.10)"
+   sudo apt-get install linux-image-extra-$(uname -r)
+fi
+
+sudo apt-get update
+
+echo "-------------------------------------"
+echo "--------- Installing Docker ---------"
+echo "-------------------------------------"
+
+sudo apt-get install docker-engine
+
+echo "Creating docker user group (allows to use docker commands without sudo)"
+sudo usermod -aG docker `whoami`
+unset DOCKER_HOST
+
+echo "Starting Docker daemon"
+sudo service docker start
+sudo docker run hello-world
+
+echo "Downloading the image for NachOS !"
+docker pull quentinfa/as_ricm4_nachos
+
+echo "Installation finished !"
+echo "Logout and login to test : docker run hello-world"
+echo "If it fails, run : sudo usermod -aG docker `whoami`"
+echo ""
+echo "Docker usage :"
+echo "docker run -i -t quentinfa/as_ricm4_nachos -v *WORKING_DIR*:/mnt"
+echo "Launches the docker container with your WORKING_DIR in /mnt"