arun-gupta.github.io

Ignite VM using Firecracker

Let’s create a Ignite VM using Firecracker.

Create an Ubuntu 18.04 c5.metal instance

  ssh -i ~/.ssh/arun-us-west1.pem ubuntu@<ip-address>

Install Docker:

  sudo apt-get update
  sudo apt-get docker.io -y

Install Ignite binary:

  export VERSION=v0.4.1
  curl -fLo ignite https://github.com/weaveworks/ignite/releases/download/${VERSION}/ignite
  chmod +x ignite
  sudo mv ignite /usr/local/bin

Create a root shell:
```
  sudo -s
```

Verify the version:

  ignite version
  Ignite version: version.Info{Major:"0", Minor:"4", GitVersion:"v0.4.1", GitCommit:"32e40b90d89a0142368800282d800bfc56ee50ae", GitTreeState:"clean", BuildDate:"2019-07-12T17:26:40Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"}
  Firecracker version: v0.17.0

Run new VM:

  ignite run weaveworks/ignite-ubuntu \
      --name my-vm \
      --cpus 2 \
      --memory 1GB \
      --size 6GB \
      --ssh
  INFO[0000] Docker image "weaveworks/ignite-ubuntu:latest" not found locally, pulling... 
  INFO[0005] Starting image import...                     
  INFO[0009] Imported OCI image "weaveworks/ignite-ubuntu:latest" (220.5 MB) to base image with UID "b29e396a569681aa" 
  INFO[0009] Docker image "weaveworks/ignite-kernel:4.19.47" not found locally, pulling... 
  INFO[0011] Imported OCI image "weaveworks/ignite-kernel:4.19.47" (49.0 MB) to kernel image with UID "e8a03bd9c1f3d452" 
  INFO[0013] Created VM with ID "bc8fa3b71176d548" and name "my-vm" 
  INFO[0013] Pulling image "weaveworks/ignite:v0.4.1"...  
  INFO[0015] Started Firecracker VM "bc8fa3b71176d548" in a container with ID "1ba2c7919118e309de2197113292489ae9105de930139d46cc0de4109b05112d" 

List the VM:

  ignite vm ls
  VM ID			IMAGE				KERNEL					CREATED	SIZE	CPUS	MEMORY		STATE	IPS		PORTS	NAME
  bc8fa3b71176d548	weaveworks/ignite-ubuntu:latest	weaveworks/ignite-kernel:4.19.47	46s ago	6.0 GB	2	1024.0 MB	Running	172.17.0.2	my-vm

SSH into the VM:

  ignite ssh my-vm
  Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.19.47 x86_64)

   * Documentation:  https://help.ubuntu.com
   * Management:     https://landscape.canonical.com
   * Support:        https://ubuntu.com/advantage

  This system has been minimized by removing packages and content that are
  not required on a system that users do not log into.

  To restore this content, you can run the 'unminimize' command.

  The programs included with the Ubuntu system are free software;
  the exact distribution terms for each program are described in the
  individual files in /usr/share/doc/*/copyright.

  Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
  applicable law.

Check CPUs:

  root@bc8fa3b71176d548:~# lscpu | grep CPU
  CPU op-mode(s):      32-bit, 64-bit
  CPU(s):              2
  On-line CPU(s) list: 0,1
  CPU family:          6
  CPU MHz:             3000.012
  NUMA node0 CPU(s):   0,1

Check memory:

  root@bc8fa3b71176d548:~# free -m
                total        used        free      shared  buff/cache   available
  Mem:            990          34         913           0          42         864
  Swap:             0           0           0

Check disk space:

  root@bc8fa3b71176d548:~# df -h
  Filesystem      Size  Used Avail Use% Mounted on
  /dev/root       5.7G  268M  5.1G   5% /
  devtmpfs        493M     0  493M   0% /dev
  tmpfs           496M     0  496M   0% /dev/shm
  tmpfs           496M  144K  496M   1% /run
  tmpfs           5.0M     0  5.0M   0% /run/lock
  tmpfs           496M     0  496M   0% /sys/fs/cgroup
  tmpfs           100M     0  100M   0% /run/user/0

Stop and remove the VM:

  root@ip-172-31-26-37:~# ignite stop my-vm
  INFO[0000] Stopped VM with name "my-vm" and ID "bc8fa3b71176d548" 
  root@ip-172-31-26-37:~# ignite rm my-vm

Exit out of the VM:
```
  exit
```
Exit out of the EC2 instance:
```
  exit
```
Terminate the EC2 instance