====== Ansible-kvm Dev ======
Working dir
    /mnt/nfv/ansible_quicklabs_ws
Currently is being dev under /mnt/nfv/ansible_quicklabs_ws/ansible_quicklabs/library_ext/ansible-kvm and not yet version controlled.

====== KVM Network ======
  * http://localhost/~dang/wiki/doku.php?id=virtualization:kvm_network
====== Prepare Images Cloud-init ======
{{tag>cloud-init}}

Download cloud image
  * http://www.projectatomic.io/blog/2014/10/getting-started-with-cloud-init/
  * https://cloud.centos.org/centos/7/images/

Cloud-init notwork? try guestfish
  * https://access.redhat.com/discussions/664843

    sudo LIBGUESTFS_BACKEND=direct guestfish --rw -a instances/controller.qcow2
    ><fs> run
    ><fs> list-filesystems 
    /dev/sda1: xfs
    ><fs> mount /dev/sda1 /
    ><fs> 

    openssl passwd -1 changeme
    $1$QiSwNHrs$uID6S6qOifSNZKzfXsmQG1

  * or https://scottlinux.com/2017/05/08/set-password-or-ssh-key-for-centos-cloud-images/
Create cloud-init iso http://giovannitorres.me/create-a-linux-lab-on-kvm-using-cloud-images.html
==== user-data ====


<code>
cat > user-data << _EOF_
#cloud-config

# Hostname management
preserve_hostname: False
hostname: default-host
fqdn: default-host.example.local

# Remove cloud-init when finished with it (optional)
runcmd:
  - [ yum, -y, remove, cloud-init ]

# Configure where output will go
output: 
  all: ">> /var/log/cloud-init.log"

# configure interaction with ssh server
ssh_svcname: ssh
ssh_deletekeys: True
ssh_genkeytypes: ['rsa', 'ecdsa']

# Install my public ssh key to the first user-defined user configured 
# in cloud.cfg in the template (which is centos for CentOS cloud images)
ssh_authorized_keys:
  - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDBil2QzORhDcnKiVVNpO5daOSYVp8nshcIc7aTEkdlqCRir2Oni8BEStK7x7bvh0jrp9KptlHPeos87fQs//VXEb1FEprL2c6fPWmVdtjmYw3yzSkaFKMksL7FdUoEiwF6t8pQAg2mU0Qj9emSHBKg5ttdGqNoSvXc92k7iOzgauda7jdNak+Dx9dPhR3FJwHMcZSlQHO4cweZcK63bZitxlFkJ/FJdry/TBirDhRcXslOJ3ECU2xiyRXJVPs3VNLjMdOTTAoMmZj+GraUBbQ9VIqe683xe02sM83th5hj2C4gW3qXUoFkNLfKAMRxXLRMEwI3ABFB/AAUhACxyTJp giovanni@throwaway

# Send pre-generated ssh private keys to the server
# If these are present, they will be written to /etc/ssh and
# new random keys will not be generated
#  in addition to 'rsa' and 'dsa' as shown below, 'ecdsa' is also supported
ssh_keys:
  rsa_private: |
    -----BEGIN RSA PRIVATE KEY-----
    MIIBxwIBAAJhAKD0YSHy73nUgysO13XsJmd4fHiFyQ+00R7VVu2iV9Qcon2LZS/x
    1cydPZ4pQpfjEha6WxZ6o8ci/Ea/w0n+0HGPwaxlEG2Z9inNtj3pgFrYcRztfECb
    1j6HCibZbAzYtwIBIwJgO8h72WjcmvcpZ8OvHSvTwAguO2TkR6mPgHsgSaKy6GJo
    PUJnaZRWuba/HX0KGyhz19nPzLpzG5f0fYahlMJAyc13FV7K6kMBPXTRR6FxgHEg
    L0MPC7cdqAwOVNcPY6A7AjEA1bNaIjOzFN2sfZX0j7OMhQuc4zP7r80zaGc5oy6W
    p58hRAncFKEvnEq2CeL3vtuZAjEAwNBHpbNsBYTRPCHM7rZuG/iBtwp8Rxhc9I5w
    ixvzMgi+HpGLWzUIBS+P/XhekIjPAjA285rVmEP+DR255Ls65QbgYhJmTzIXQ2T9
    luLvcmFBC6l35Uc4gTgg4ALsmXLn71MCMGMpSWspEvuGInayTCL+vEjmNBT+FAdO
    W7D4zCpI43jRS9U06JVOeSc9CDk2lwiA3wIwCTB/6uc8Cq85D9YqpM10FuHjKpnP
    REPPOyrAspdeOAV+6VKRavstea7+2DZmSUgE
    -----END RSA PRIVATE KEY-----

  rsa_public: ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAGEAoPRhIfLvedSDKw7XdewmZ3h8eIXJD7TRHtVW7aJX1ByifYtlL/HVzJ09nilCl+MSFrpbFnqjxyL8Rr/DSf7QcY/BrGUQbZn2Kc22PemAWthxHO18QJvWPocKJtlsDNi3 smoser@localhost

  dsa_private: |
    -----BEGIN DSA PRIVATE KEY-----
    MIIBuwIBAAKBgQDP2HLu7pTExL89USyM0264RCyWX/CMLmukxX0Jdbm29ax8FBJT
    pLrO8TIXVY5rPAJm1dTHnpuyJhOvU9G7M8tPUABtzSJh4GVSHlwaCfycwcpLv9TX
    DgWIpSj+6EiHCyaRlB1/CBp9RiaB+10QcFbm+lapuET+/Au6vSDp9IRtlQIVAIMR
    8KucvUYbOEI+yv+5LW9u3z/BAoGBAI0q6JP+JvJmwZFaeCMMVxXUbqiSko/P1lsa
    LNNBHZ5/8MOUIm8rB2FC6ziidfueJpqTMqeQmSAlEBCwnwreUnGfRrKoJpyPNENY
    d15MG6N5J+z81sEcHFeprryZ+D3Ge9VjPq3Tf3NhKKwCDQ0240aPezbnjPeFm4mH
    bYxxcZ9GAoGAXmLIFSQgiAPu459rCKxT46tHJtM0QfnNiEnQLbFluefZ/yiI4DI3
    8UzTCOXLhUA7ybmZha+D/csj15Y9/BNFuO7unzVhikCQV9DTeXX46pG4s1o23JKC
    /QaYWNMZ7kTRv+wWow9MhGiVdML4ZN4XnifuO5krqAybngIy66PMEoQCFEIsKKWv
    99iziAH0KBMVbxy03Trz
    -----END DSA PRIVATE KEY-----

  dsa_public: ssh-dss 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 smoser@localhost

_EOF_
</code>

<code>
echo "instance-id: default-instance; local-hostname: default-host" > meta-data
</code>

  * More example: https://cloudinit.readthedocs.io/en/latest/topics/examples.html
  * centos uses v 0.7.5, aware of the format: 
    * https://cloudinit.readthedocs.io/en/0.7.7/topics/examples.html
    * https://docs.platform9.com/support/customize-a-virtual-machine-instance-with-cloud-init/

Create iso
    genisoimage -output default-cidata.iso -volid cidata -joliet -rock user-data meta-data

===== Debug cloud init =====
    #on centos
    less /var/log/message 
    # search CLOUDINIT
    /var/log/cloud-init.log
    
    sudo cloud-init --debug --file user-data single --name write_files --frequency=always ; echo $?
    
Test Run image or use ansible module
    qemu-img create -f qcow2 -o backing_file=fedora-atomic-rawhide-20141008.0.qcow2 hda.qcow2
    qemu-kvm -name atomic-cloud-host -m 768 -hda hda.qcow2 -cdrom atomic01-cidata.iso -netdev bridge,br=virbr0,id=net0 -device virtio-net-pci,netdev=net0 -display sdl


====== Running / Testing Module Command ======
    cd /mnt/nfv/ansible_quicklabs_ws
    ls 
    # ansible-kvm  ansible-nmcli  ansible_quicklabs  ansible_src
    source ansible_src/ansible/hacking/env-setup
===== Create workspace for cloud_lab =====
    ansible-playbook -i inventory/vi_nodes quicklab_kvm_openstack.yml --tags prepair -vvv
===== Create instance =====

    sudo ansible_src/ansible/hacking/test-module -m ansible_quicklabs/library_ext/ansible-kvm/library/kvm_cmd.py -a "action='instance-create' image_base='/mnt/nfv/kvm_openstack_lab/images/Fedora-Cloud-Base-24-1.2.x86_64.qcow2' image_format='qcow2' instance_name='/mnt/nfv/kvm_openstack_lab/instances/controller.qcow2' image_size=8G"
===== Boot instance =====

    sudo ansible_src/ansible/hacking/test-module -m ansible_quicklabs/library_ext/ansible-kvm/library/kvm_cmd.py \
    -a "action='boot' instance_name='/mnt/nfv/kvm_openstack_lab/instances/controller.qcow2' instance_cpus=1 instance_ram=1024 instance_vnc=:1 instance_cdrom=/mnt/nfv/kvm_openstack_lab/cloud-init/default/default-cidata.iso"

===== SSH =====
http://docs.ansible.com/ansible/intro_adhoc.html#parallelism-and-shell-commands

===== Errors =====
==== restart dnsmasqd.service on host machine ====