Templates para criação de imagens-base para máquinas virtuais com o QEMU e Hashicorp Packer. O Ansible será o provisioner do Packer - ele executa ações desejadas dentro da VM de build.
IPC.: a pasta ansible é uma adaptação do repositório de cloud-images do Alma Linux.
No momento, estes são os sistemas suportados pelos templates:
- Debian 12.4.0
- packer (>= 1.7.0)
- qemu
- ansible
- fedora 40 -> validado somente aqui
# instala os pacotes
sudo dnf install \
ansible \
make \
qemu \
git \
unzipPACKER_VERSION="1.11.0"
cd /tmp
curl -fsSL https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_linux_amd64.zip -o packer.zip
unzip packer.zip
sudo mv packer /usr/local/bin/packer
sudo chmod +x /usr/local/bin/packer
unset PACKER_VERSIONgit clone https://github.com/ojpojao/imagens-base-vm.git
cd images-base-vmO template está configurado para executar em modo headless - sem interface gráfica. Para habilitá-la, edite o template no argumento _headless = true_ e mude para false antes de rodar o comando de build.
O build pode ser executado através dos comandos que estão no Makefile. Para verificar os comandos disponíveis, digite make help.
Ajuda:
➜ make help
Uso:
make help Exibe esta mensagem de ajuda
make init Prepara o ambiente para a execução do Packer
make build Constrói a imagem base com o PackerBuild:
make init
make build# output do Packer
packer build -force debian12.pkr.hcl
qemu.debian12: output will be in this color.
==> qemu.debian12: Retrieving ISO
==> qemu.debian12: Trying https://cdimage.debian.org/mirror/cdimage/archive/12.4.0/amd64/iso-cd/debian-12.4.0-amd64-netinst.iso
==> qemu.debian12: Trying https://cdimage.debian.org/mirror/cdimage/archive/12.4.0/amd64/iso-cd/debian-12.4.0-amd64-netinst.iso?checksum=sha256%3A64d727dd5785ae5fcfd3ae8ffbede5f40cca96f1580aaa2820e8b99dae989d94
==> qemu.debian12: https://cdimage.debian.org/mirror/cdimage/archive/12.4.0/amd64/iso-cd/debian-12.4.0-amd64-netinst.iso?checksum=sha256%3A64d727dd5785ae5fcfd3ae8ffbede5f40cca96f1580aaa2820e8b99dae989d94 => /home/ojpojao/.cache/packer/5db75c3c6f567036ff5
ede632b329e89a0fabd44.iso
==> qemu.debian12: Starting HTTP server on port 8570
==> qemu.debian12: Found port for communicator (SSH, WinRM, etc): 3154.
.
.
.
. restante da saída verbosa omitidaA imagem, será configurada com o cloud-init. Os arquivos de exemplo estão na pasta cloud-init. Referência de configuração do cloud-init aqui.
# cloud-init iso
genisoimage \
-output output/cloud-init.iso \
-volid cidata -rational-rock -joliet \
cloud-init/user-data cloud-init/meta-data cloud-init/network-configcp output/debian*.qcow2 output/instance.qcow2
qemu-img resize output/instance.qcow2 +10G
qemu-system-x86_64 \
-name debian12 \
-machine type=q35,accel=kvm \
-cpu host \
-m 2048M \
-boot once=dc \
-device e1000,netdev=eth0 \
-netdev user,id=eth0,hostfwd=tcp::22222-:22 \
-drive file=output/cloud-init.iso,if=ide,media=cdrom \
-drive file=output/instance.qcow2,if=virtio,cache=writeback,discard=ignore,format=qcow2 \
-vnc 0.0.0.0:40 \
-nographic# usuario: debian; senha: passwd - como configurado nos arquivos do cloud-init
SeaBIOS (version 1.16.3-2.fc40)
iPXE (https://ipxe.org) 00:02.0 CA00 PCI2.10 PnP PMM+7EFC9C00+7EF09C00 CA00
Booting from Hard Disk...
GRUB loading.
Welcome to GRUB!
Debian GNU/Linux 12 debian ttyS0
debian login:debian login: debian
Password:
Linux debian 6.1.0-21-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.90-1 (2024-05-03) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu Jun 13 04:32:57 -03 2024 on ttyS0
debian@debian:~$Referências:
- @ansible https://www.ansible.com/
- @cloud-init https://cloud-init.io/
- @AlmaLinux AlmaLinux cloud-images
- @hashicorp Packer - https://developer.hashicorp.com/packer
- @qemu https://www.qemu.org/
- @debian https://www.debian.org