How to fix read-only file system in Terraform

# Check mount status
mount | grep " / "
# Look for "ro" flag - if you see it, filesystem is read-only

# Try to touch a test file in working directory
touch test-file.txt
rm test-file.txt

# Check available space
df -h

# Look for 100% usage - this is critical
df -i  # Check inode usage too

# Clean up if needed
rm -rf /path/to/large/files

# Check current directory permissions
ls -ld .

# Check if you can write (should complete without error)
touch .test-write && rm .test-write

# If permission denied, check user/group
id
groups

# Fix permissions if needed
chmod u+w .

# Run with writable volume
docker run -v /path/to/writable:/work \
  -w /work \
  hashicorp/terraform:latest init

# Or in docker-compose.yml
services:
  terraform:
    image: hashicorp/terraform:latest
    volumes:
      - ./terraform:/work
      - terraform-cache:/root/.terraform.d
    working_dir: /work

volumes:
  terraform-cache:

# Set to writable directory
export TF_DATA_DIR=/tmp/.terraform

# Or in environment during apply
TF_DATA_DIR=/writable/path terraform init
TF_DATA_DIR=/writable/path terraform apply

# Check current mounts
mount | grep " / "

# Remount as writable (requires sudo)
sudo mount -o remount,rw /

# Or for specific partition
sudo mount -o remount,rw /var

# terraform.tf
terraform {
  cloud {
    organization = "my-org"

    workspaces {
      name = "my-workspace"
    }
  }
}

# Or with S3
terraform {
  backend "s3" {
    bucket         = "my-terraform-state"
    key            = "prod/terraform.tfstate"
    region         = "us-east-1"
    dynamodb_table = "terraform-locks"
  }
}