#CODA 2 USE SSH KEY HOW TO#
#CODA 2 USE SSH KEY INSTALL#
#CODA 2 USE SSH KEY UPDATE#
#CODA 2 USE SSH KEY PASSWORD#

Ansible-Sample-Application-Deployment]# ansible-playbook main.yml -i inventories/dev/hosts -user devops -key-file /home/devops/.ssh/id_rsa -e you have successfully Setup SSH between two AWS EC2 instances using Ansible.SSH is an important tool when it comes to a work to be done in another server.

Once you setup the devops user then you can use the devops key and run the playbook using devops user.

You have successfully setup the ssh key between two servers.

Now try to do the ssh using ec2-user you will still see the “Permission Denied” error, because we have set the devopsuser for ssh connectivity.

This private key will be ignored.”Īnsible-playbook main.yml -i inventories/dev/hosts -user ec2-user -key-file ansible_aut.pem -e change the permission of the pem file and then re-run the playbook sudo chmod 600 ansible_aut.pemĭevops user has created successfully and the public key also get copied to the remote servers If the permission is not set properly you will see the error “It is required that your private key files are NOT accessible by others.

PEM file need to have specific permission before you can use it directly.

You need to use the .pem file to connect initially.

I am assuming all the remote hosts have same keys.

You need to provide the user ec2-user and the key to connect to the remote host.

#CODA 2 USE SSH KEY HOW TO#

Tasks_from: add_user.yml How to run the playbook Put the .pub file either on your git repo or anywhere on the master nodeĬontent: 'devops ALL=(ALL) NOPASSWD: ALL'

lookup command will try to find the .pub file on the master ansible node for devops user and put that public key in the authorized_keys on the remote servers.

Write a playbook to create a new user, set a password, add it to the sudoers file.

#CODA 2 USE SSH KEY INSTALL#

Ssh -i ~/.ssh/id_rsa ipoftheserver Install git and clone the git repo sudo yum install git git clone If you try to run the below command as ec2-user and devops you will get the error “Permission Denied” because we have not copied the public key to the remote hosts yet.How we will connect initially to our other nodes ? copy the id_rsa.pub file to your git repo or anywhere on the master server so that you can refer that in your playbook.Now we have to add this public key to all the remote hosts. It will generate the public and private key file for the devops user. Login as a devops user and follow the prompts.

Now we will generate the SSH keys for the devops user Generate a SSH Key

#CODA 2 USE SSH KEY PASSWORD#

Add the user in sudoers.d file, this allow user to run any command using sudo without passing their passwordĮcho -e ‘devops ALL=(ALL) NOPASSWD: ALL’ > /etc/sudoers.d/devopsĮncrypt the password sudo yum whatprovides */mkpasswd.Install Ansible sudo amazon-linux-extras install ansible2 ~]$ ansible -versionĪnsible 2.9.9 Setup a devops user on Master Node

#CODA 2 USE SSH KEY UPDATE#

Run the yum update command to get all system updatesĢ.Now you are connected to your master Ansible node You need to use the pem file which you have downloaded while launching an instance.Search for service EC2 ->Click on EC2 -> Instances ->Launch Instance -> Linux AMI2 -> select default instance t2.micro -> configure security group Review and Launch -> create a key to connect to the instance.If you do not want to create a new user and use the default user like ec2-user,ubuntu then you can skip the creation of user.Run the playbook to setup a devops user on all other nodes.Setup a new user devops on the Ansible master node manually.We will use the .pem file which we have associated while launching the instances to connect to the server initially.We will create an ansible playbook which will setup a user.We do not want to login to each of the servers and create first user and setup the authorized_keys manually.You need the SSH connection between instances.If you want to see the video for this article, click here With this approach, you will be able to connect to any instance using SSH. In this blog will enumerate the steps required to setup a password less ssh connection between two AWS EC2 instances.

Coda 2 use ssh key