From e15d9acbd07c1ecb6e6c6b24f547b60f7d92ebaf Mon Sep 17 00:00:00 2001
From: binary <me@rgoncalves.se>
Date: Sun, 8 Nov 2020 20:56:18 +0100
Subject: Add working script for ssh init on alpine vm

---
 roles/vmm/files/init_vm_serial.py   | 88 +++++++++++++++++++++++++++++++++++++
 roles/vmm/tasks/boot_alpine.yml     | 43 ------------------
 roles/vmm/tasks/generate_vmconf.yml | 21 +++++++--
 roles/vmm/tasks/init_hypervisor.yml |  1 +
 roles/vmm/tasks/init_vm.yml         | 26 +++++++++++
 roles/vmm/templates/vm.conf.j2      | 21 ++++++---
 roles/vmm/vars/main.yml             |  8 +++-
 7 files changed, 154 insertions(+), 54 deletions(-)
 create mode 100644 roles/vmm/files/init_vm_serial.py
 delete mode 100644 roles/vmm/tasks/boot_alpine.yml
 create mode 100644 roles/vmm/tasks/init_vm.yml

(limited to 'roles/vmm')

diff --git a/roles/vmm/files/init_vm_serial.py b/roles/vmm/files/init_vm_serial.py
new file mode 100644
index 0000000..46e34d7
--- /dev/null
+++ b/roles/vmm/files/init_vm_serial.py
@@ -0,0 +1,88 @@
+#!/bin/python3
+
+import serial
+import subprocess
+import sys
+import os
+
+import time
+
+
+USAGE = f"USAGE: {sys.argv[0]} vm_guest gate ip mask ssh_key"
+
+
+def send_cmd(ser, delay, cmd):
+    ser.write(f"{cmd}\n".encode("utf-8"))
+    time.sleep(delay)
+
+def send_cmds(ser, cmds):
+    for cmd in cmds:
+        send_cmd(ser, cmd[0], cmd[1])
+
+
+def main():
+
+    COM = "/dev/"
+    BAUD = 115200
+    TIMEOUT = 1
+
+    if len(sys.argv) != 7:
+        sys.stderr.write(USAGE)
+        sys.exit(1)
+
+    GUEST = "vm-tmp"
+    HOST = sys.argv[1]
+
+    cmd = f"vmctl show | grep {GUEST} | tr -s ' ' | cut -d ' ' -f7"
+    _buffer = subprocess.check_output(cmd, shell=True).decode().rstrip()
+    print(_buffer)
+
+    if _buffer == "":
+        sys.exit(1)
+    COM += _buffer
+
+    IP = sys.argv[2]
+    GATE = sys.argv[3]
+    MASK = sys.argv[4]
+    DNS = sys.argv[5]
+    SSHKEY = sys.argv[6]
+
+    ser = serial.Serial(COM, BAUD, timeout=TIMEOUT)
+
+    send_cmd(ser, 1, "root")
+
+    # virtual interface
+    send_cmds(ser, [
+        [1, "setup-interfaces"],
+        [1, ""],
+        [1, f"{IP}"],
+        [1, f"{MASK}"],
+        [1, f"{GATE}"],
+        [1, "no"],
+        [1, "ifdown -a"],
+        [10, "ifup -a"]
+    ])
+
+    # dns
+    send_cmds(ser, [
+        [1, "setup-dns"],
+        [1, f"{HOST}"],
+        [1, f"{DNS}"]
+    ])
+
+    # ssh
+    send_cmds(ser, [
+        [5, "apk add openssh"],
+        [1, "mkdir /root/.ssh"],
+        [1, f"echo '{SSHKEY}' > /root/.ssh/authorized_keys"],
+        [1, f"echo 'PermitRootLogin yes' >> /etc/ssh/sshd_config"],
+        [1, "/etc/init.d/sshd restart"]
+    ])
+
+    ser.close()
+
+    print(COM)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/roles/vmm/tasks/boot_alpine.yml b/roles/vmm/tasks/boot_alpine.yml
deleted file mode 100644
index da4e91e..0000000
--- a/roles/vmm/tasks/boot_alpine.yml
+++ /dev/null
@@ -1,43 +0,0 @@
-
-# vmm ~~ tasks/boot_alpine.yml
-# Boot an alpine image and init its installation set.
-# Required :
-# - guest : vm to be be bootup and initialized
-
----
-
-- name: Check arguments
-  fail: 
-    msg: "arguments : guest"
-  when: guest is not defined
-
-- set_fact:
-    iso: "{{ hostvars[guest].iso }}"
-    disk_file : "{{ vmm.disk.dir }}/{{ guest }}.{{ vmm.disk.format }}"
-
-- include: set_facts.yml
-
-- name: Start vm
-  shell: |
-    vmctl stop dummy
-    sleep 2
-    vmctl start -d {{ iso_latest | quote }} \
-      -d {{ disk_file | quote }} \
-      -n {{ vmm.config.switch.name | quote }} \
-      -m {{ hostvars[guest].memory | quote }} dummy
-
-    sleep 2
-    tty=$(vmctl show | grep dummy | tr -s " " " " | cut -d " " -f 7)
-    sleep 20
-
-    cat << EOF > /dev/${tty}
-      echo "mkdir /root/.ssh"
-      echo "echo $(cat /root/.ssh/authorized_keys) > /root/.ssh/authorized_keys" > /dev/ttyp1
-      echo "apk add openssh ; rc-update add sshd ; /etc/init.d/sshd start" /dev/${tty}
-    EOF
-
-    exit 0
-
-  args:
-    executable: /bin/sh
-
diff --git a/roles/vmm/tasks/generate_vmconf.yml b/roles/vmm/tasks/generate_vmconf.yml
index c4e80d8..e8f8245 100644
--- a/roles/vmm/tasks/generate_vmconf.yml
+++ b/roles/vmm/tasks/generate_vmconf.yml
@@ -4,13 +4,26 @@
 
 ---
 
+- name: Start ip forwarding
+  shell: sysctl net.inet.ip{{ item }}.forwarding=1
+  loop:
+    - ""
+    - "6"
+
+- name: Enable ip forwarding
+  lineinfile:
+    path: /etc/sysctl.conf
+    regexp: "^net.inet.ip{{ item }}.forwarding="
+    line: "net.inet.ip{{ item }}.forwarding=1"
+  loop: 
+    - ""
+    - "6"
+
 - name: Create network switch
-  template:
-    src: templates/hostname.j2
-    dest: "/etc/hostname.{{ vmm.switch.interface }}"
+  shell: echo "add {{ hypervisor.interface }}" > /etc/hostname.{{ vmm.switch.iface }}
 
 - name: Start network switch
-  shell: "sh /etc/netstart {{ vmm.switch.interface }}"
+  shell: "sh /etc/netstart {{ vmm.switch.iface }}"
 
 - name: Generate vmm configuration
   template:
diff --git a/roles/vmm/tasks/init_hypervisor.yml b/roles/vmm/tasks/init_hypervisor.yml
index c963bbb..b206279 100644
--- a/roles/vmm/tasks/init_hypervisor.yml
+++ b/roles/vmm/tasks/init_hypervisor.yml
@@ -10,3 +10,4 @@
 
 - include: generate_vmconf.yml guest="{{ item }}"
   loop: "{{ hostvars[ansible_host] }}.vm.hosts"
+
diff --git a/roles/vmm/tasks/init_vm.yml b/roles/vmm/tasks/init_vm.yml
new file mode 100644
index 0000000..4ded177
--- /dev/null
+++ b/roles/vmm/tasks/init_vm.yml
@@ -0,0 +1,26 @@
+
+# vmm ~~ tasks/init_vm.yml
+
+---
+
+- include_role:
+    name: serial
+
+- set_fact:
+    
+
+- name: Init vm via script
+  script: init_vm_serial.py \
+    {{ guest }} \
+    {{ hostvars[guest].ip.out }} \ 
+    {{ hypervisor.gateway }} \ 
+    {{ hypervisor.mask }} \ 
+    {{ _i.dns[0] }} \
+    "{{ lookup('file', inventory_dir + '/files/pubkeys/rgoncalves.pub') }}"
+  args:
+    executable: "/usr/local/bin/python3"
+  register: rg
+
+- name: Installation result
+  debug:
+    var: rg.stdout_lines
diff --git a/roles/vmm/templates/vm.conf.j2 b/roles/vmm/templates/vm.conf.j2
index 2665c16..f9fa6f5 100644
--- a/roles/vmm/templates/vm.conf.j2
+++ b/roles/vmm/templates/vm.conf.j2
@@ -1,8 +1,22 @@
 #jinja2: trim_blocks: True, lstrip_blocks: True
 
+# vm configuration ~~ /etc/vm.conf
+# managed by Ansible
+
+# ====================== #
+# virtual network switch
+# ====================== #
+
+switch "{{ vmm.switch.name }}" {
+	interface {{ vmm.switch.iface }}
+}
+
+# ============================ #
+# virtual machines declaration
+# ============================ #
+
 {% for vm in vms if hostvars[vm.name] is defined %}
 {% set guest = hostvars[vm.name] %}
-
 vm "{{ guest.ansible_host }}" {
 	{% if vm.enabled and vm.enabled is defined %}
 	enable
@@ -15,8 +29,5 @@ vm "{{ guest.ansible_host }}" {
 		switch "{{ vmm.switch.name }}"
 	}
 }
-{% endfor %}
 
-switch "{{ vmm.switch.name }}" {
-	interface {{ vmm.switch.interface }}
-}
+{% endfor %}
diff --git a/roles/vmm/vars/main.yml b/roles/vmm/vars/main.yml
index 8119c88..8ad57a0 100644
--- a/roles/vmm/vars/main.yml
+++ b/roles/vmm/vars/main.yml
@@ -13,11 +13,15 @@ vmm:
   disk_format: "qcow2"
 
   config_file: "/etc/vm.conf"
+
+  viface:
+    iface: "vether0"
+    ip: "192.168.10.1"
+    mask: "255.255.255.0"
   
   switch:
+    iface: "bridge0"
     name: "uplink"
-    interface: "bridge0"
-    interface_host: "bnx0"
 
   iso:
 
-- 
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