Here’s the command to authenticate as a service account.
gcloud auth activate-service-account --key-file=key.json |
To log out.
gcloud auth revoke |
GCP Login Service Account
Modify a line using sed
Here’s how to modify a line in a file using sed.
sed -i 's/replace me.*/with this text/' /path/to/a/file.txt |
AWS EC2 ENA Support
AWS has machine types that require ENA Support. You can run AWS CLI to find out if instance is ENA enabled.
aws ec2 describe-instances \ --instance-id i-xxxxxxxxxxxxxxxxx \ --profile default \ --region us-east-1 \ --query 'Reservations[].Instances[].EnaSupport' |
Login to the instance and verify.
sudo lspci | grep -i Amazon |
List driver details.
modinfo nvme |
Verify modules loaded at startup.
lsmod | grep nvme lsmod | grep ena |
If ENA drivers are missing, install them.
yum install pciutils |
S3FS
s3fs allows Linux to mount S3 buckets as a file system.
Install s3fs.
sudo apt install s3fs |
Setup credentials.
echo ACCESS_KEY_ID:SECRET_ACCESS_KEY > ${HOME}/.passwd-s3fs chmod 600 ${HOME}/.passwd-s3fs |
Mount it.
s3fs bucketname /mountpoint -o passwd_file=${HOME}/.passwd-s3fs |
Mount it automatically.
bucketname /mountpoint fuse.s3fs _netdev,allow_other,passwd_file=/home/user/.passwd-s3fs,rw,uid=1000,gid=1000 0 0 |
GCP Keep Disk
Keep your disks when a VM is deleted.
gcloud compute instances set-disk-auto-delete server --no-auto-delete --disk=server-disk-1 gcloud compute instances set-disk-auto-delete server --no-auto-delete --disk=server-disk-2 |