Simply connect to your 'EC2 Instance Connect'-capable AWS EC2 servers using one command.
If you use 'EC2 Instance Connect' as described in this article you already noticed that it can become a hassle to connect to instances, especially if you frequently connect to different instances. The sshaws
command allows takes care of gathering the necessary information, calling ec2-instance-connect (to register your public key) and, finally, ssh to the instance.
With sshaws, in the best case, connecting to your instances will look like this:
- python3 and pip
- configured aws credentials and rights to connect to the instance
- instance needs to support ec2-instance-connect (AWS AMIs support that + you can install it on your servers)
- public (or private) IP needs to be reachable
pip install sshaws
You might need to use pip3 if you are not in a virtualenv. You might want to install the package in user space (if you don't have sudo rights). E.g.:
pip3 install --user sshaws
sshaws <instance-id>
<instance-id>
should be replaced by something like: i-074126021e7b3e7f5
. The Instance ID can be found in the AWS Console (EC2 view, ECS task description, etc.)
You can also use an alias for <instance-id>
if aliases are configured in .sshaws.conf. (see Config section)
By default it will use the default region, your ssh key at ~/.ssh/id_rsa (private) and ~/.ssh/id_rsa.pub (public) and ec2-user as the username used to connect. See the help output to see how to change these options:
sshaws --help
To look for the instance in two different regions use:
sshaws <instance-id> --regions eu-central-1 us-east-1
To avoid having to set command line arguments again and again you can write a config file to ~/.sshaws.conf
.
This is an example:
{
"profile": "dev-account",
"os_user": "kevin",
"use_private_id": true,
"regions": ["eu-central-1", "us-east-1"],
"key_file_path_private": "/home/example/.ssh/somekey",
"key_file_path_public": "/home/example/.ssh/somekey.pub",
"forward_agent": true,
"aliases": {
"my-ec2-bastion": "i-074126021e7b3e7f5",
"my-web-server": "i-004cb95e71985a510"
}
}
Private and public key might be combined in the same file in some cases. Just specify both options with the same value.