Final submition Alexandre Tavernier

answers.md

@@ -1,41 +1,60 @@
 # Answers
 
-Lastname:
-Firstname:
+Lastname : Tavernier
+Firstname: Alexandre
+2.2
 
-## 2.2
-command:
+command: sudo docker run testapp
+2.3
 
-## 2.3
-question:
-command:
+question: ports are not opened command: sudo docker -i --expose:PortNumber testapp // where PortNumber is the port we want to open.
+2.5
 
-## 2.5
 question:
-command:
 
-## 2.6
-command:
+This is because docker push uses the tag to identify the repository where it is supposed to push the image.
 
-question:
 command:
 
-command:
+sudo docker login // and then I provided my login infos sudo docker tag testing louisclavero/devops_lab // where testing is the name of my image, louisclavero is my docker hub id, and devops_lab is my docker hub repository sudo docker push louisclavero/devops_lab
+2.6
 
-## 2.7
-question:
-question:
 command:
 
-command:
+sudo docker system prune -a (this is actually more than necessary since it purges every resources)
 
-## 2.8
-question:
-output:
+question: "sudo docker pull louisclavero/devops_lab" to create a container, "sudo docker create louisclavero/devops_lab"
+
+We need to use --net=host in order for the container to be able to reach localhost on the laptop since the container has its own network by default.
 
-## 3.1
 command:
 
-## 3.4
+sudo docker run louisclavero/devops_lab
+
+sudo docker ps -a yields: CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5f995d80bc82 louisclavero/devops_lab "/bin/sh -c 'node ..." 10 minutes ago Up 2 seconds goofy_kowalevski
+
 command:
+
+sudo docker start -d --net=host goofy_kowalesvski
+2.7
+
+question: we use the command "sudo docker ps -a" to get the list of containers and check that our container is started.
+
+CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5f995d80bc82 louisclavero/devops_lab "/bin/sh -c 'node ..." 13 minutes ago Up 2 minutes goofy_kowalevski
+
+question: the name of the container is goofy_kowalevski
+
 command:
+
+sudo docker ps -a
+
+command: we can either rerun the image setting a new name by: sudo docker start -d --name rest_api louisclavero/devops_lab or rename the already existing goofy_kowalevski container by: sudo docker rename goofy_kowalevski rest_api
+2.8
+
+question: We can enter interactive mode by executing the following command: "sudo docker run -it louisclavero/devops_lab /bin/bash". now, using "cat /etc/*release" output: root@09a1ef804243:/# cat /etc/*release PRETTY_NAME="Debian GNU/Linux 9 (stretch)" NAME="Debian GNU/Linux" VERSION_ID="9" VERSION="9 (stretch)" ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/"
+3.1
+
+command: sudo docker-compose up
+3.4
+
+command: sudo docker-compose up -d command: sudo docker-compose logs