Hello everyone,
I’m facing an issue with Day 50: Expanding EC2 Instance Storage for Development Needs in the 100 Days of Cloud (AWS) path.
I believe my configuration is correct, but unfortunately I failed the challenge 
. I’m not sure whether this is a platform bug or if I made a mistake (though I don’t think so).
Here’s the process I followed:
-
Increased the volume size using the AWS Console (waited until the volume state changed to “in-use”).
-
Connected to the EC2 instance via SSH.
-
Ran the following commands:
- First, expanded the partition:
sudo growpart /dev/xvda 1 - Then, expanded the filesystem:
sudo xfs_growfs -d /
- First, expanded the partition:
wait 5min
[ec2-user@ip-172-31-16-140 ~]$ df -hT
Filesystem Type Size Used Avail Use% Mounted on
devtmpfs devtmpfs 4.0M 0 4.0M 0% /dev
tmpfs tmpfs 475M 0 475M 0% /dev/shm
tmpfs tmpfs 190M 2.9M 188M 2% /run
/dev/xvda1 xfs 12G 1.6G 11G 13% / <--- this
tmpfs tmpfs 475M 0 475M 0% /tmp
/dev/xvda128 vfat 10M 1.3M 8.7M 13% /boot/efi
tmpfs tmpfs 95M 0 95M 0% /run/user/1000
wait another 5min 
============================= test session starts ==============================
platform linux -- Python 3.10.17, pytest-8.3.5, pluggy-1.6.0
rootdir: /usr/share
plugins: testinfra-10.2.2
collected 1 item
../usr/share/test.py F [100%]
=================================== FAILURES ===================================
____________________________ test_volume_expansion _____________________________
def test_volume_expansion():
host = testinfra.get_host("local://")
# Get the instance ID and public IP
instance_info = host.run("aws ec2 describe-instances --filters Name=tag:Name,Values=devops-ec2 --query 'Reservations[0].Instances[0].[InstanceId,PublicIpAddress]' --output text")
assert instance_info.rc == 0, "Failed to get the instance ID and public IP"
instance_id, instance_ip = instance_info.stdout.strip().split()
# Check the volume size in AWS
volume_size = host.run(f"aws ec2 describe-volumes --filters Name=attachment.instance-id,Values={instance_id} --query 'Volumes[0].Size' --output text")
assert volume_size.rc == 0, f"Failed to get the volume size: {volume_size.stderr}"
assert volume_size.stdout.strip() == "12", "Volume size is not 12 GiB."
# SSH into the instance to check the root partition size
ssh_host = testinfra.get_host(f"ssh://ec2-user@{instance_ip}", ssh_identity_file="/root/devops-keypair.pem")
> partition_size = ssh_host.check_output("df -h / | grep /dev/xvda1 | awk '{print $2}'")
/usr/share/test.py:19:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
/usr/local/lib/python3.10/site-packages/testinfra/host.py:98: in run
return self.backend.run(command, *args, **kwargs)
/usr/local/lib/python3.10/site-packages/testinfra/backend/ssh.py:46: in run
return self.run_ssh(self.get_command(command, *args))
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <testinfra.backend.ssh.SshBackend object at 0x79f5fc2d2a40>
command = "df -h / | grep /dev/xvda1 | awk '{print $2}'"
def run_ssh(self, command: str) -> base.CommandResult:
cmd, cmd_args = self._build_ssh_command(command)
out = self.run_local(" ".join(cmd), *cmd_args)
out.command = self.encode(command)
if out.rc == 255:
# ssh exits with the exit status of the remote command or with 255
# if an error occurred.
> raise RuntimeError(out)
E RuntimeError: CommandResult(backend=<testinfra.backend.ssh.SshBackend object at 0x79f5fc2d2a40>, exit_status=255, command=b"df -h / | grep /dev/xvda1 | awk '{print $2}'", _stdout=b'', _stderr=b'Host key verification failed.\r\n')
/usr/local/lib/python3.10/site-packages/testinfra/backend/ssh.py:95: RuntimeError
=========================== short test summary info ============================
FAILED ../usr/share/test.py::test_volume_expansion - RuntimeError: CommandRes...
============================== 1 failed in 2.50s ===============================
Has anyone encountered this issue before or knows what might be going wrong?
thanks in advance!
Kev$n
