API Issues when using cloudinit

[pascalku]

Hey there,

I am using the api to create and manage my virtual machines. Whenever I am going to update the given cloud-init settings, username and password are working well as expected.

Now I want to set IPv4 Settings. So I am going to set put it to .../qemu/<id>/config as a parameter "ipconfig0" with the value "ip=192.168.25.32/32,gw=192.168.0.1".

I expect that the given setup will change the ipv4 address of cloud-inits "net0" like it is whenever I am going to change it trough the webinterface but using the api, it won't change anything.

Hopefully you are able to help me.

 

[mira]

Please post the output of pveversion -v.

 

[pascalku]

Linux pve 5.3.10-1-pve #1 SMP PVE 5.3.10-1 (Thu, 14 Nov 2019 10:43:13 +0100) 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.
root@pve:~# pveversion -v
proxmox-ve: 6.1-2 (running kernel: 5.3.10-1-pve)
pve-manager: 6.1-3 (running version: 6.1-3/37248ce6)
pve-kernel-5.3: 6.0-12
pve-kernel-helper: 6.0-12
pve-kernel-5.3.10-1-pve: 5.3.10-1
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.0.2-pve4
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: 0.8.35+pve1
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.13-pve1
libpve-access-control: 6.0-5
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-9
libpve-guest-common-perl: 3.0-3
libpve-http-server-perl: 3.0-3
libpve-storage-perl: 6.1-2
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve3
lxc-pve: 3.2.1-1
lxcfs: 3.0.3-pve60
novnc-pve: 1.1.0-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.1-1
pve-cluster: 6.1-2
pve-container: 3.0-14
pve-docs: 6.1-3
pve-edk2-firmware: 2.20191002-1
pve-firewall: 4.0-9
pve-firmware: 3.0-4
pve-ha-manager: 3.0-8
pve-i18n: 2.0-3
pve-qemu-kvm: 4.1.1-2
pve-xtermjs: 3.13.2-1
qemu-server: 6.1-2
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.2-pve2
root@pve:~#

 

[mira]

Do you use pvesh to set the value or something else? What's the return value?

 

[pascalku]

I am accessing the proxmox api using a thrid party java implementation. It is a put request like described in your actual api documentations.

Could you tell me how to do this using pvesh?

 

[mira]

pvesh set nodes/<node>/qemu/<vmid>/config --ipconfig <value>

 

[pascalku]

So as a value I cloud by example use this?

--ipconfig ip=192.168.125.25/32,gw=192.168.0.1

 

[mira]

Exactly. Does this work?

 

[pascalku]

So, if I am using the command below, everything seems to be okay.

pvesh set nodes/pve/qemu/101/config --ipconfig0 ip=192.168.125.12/32,gw=192.168.0.1

But I don't do anything other not equivalent to this? I also do a PUT Request to the given path with the body param "ipconfig0" and the given value?

 

[mira]

Do you pass the ticket as well? As asked previosuly, what's the return value you get when it does not work?

 

[pascalku]

Its returning a 400 error "Parameter verification failed."?

 

[pascalku]

A screenshot of my current debug session

 

[pascalku]

I think I found the problem. Is it possible to send a json request body? My current api uses "ipconfig0=ip=192.168.125.12/32,gw-192.168.0.1&..." as the request body

 

[mira]

Set the content type accordingly and it should work. So application/json and pass the data as json.

 

[pascalku]

Now its still working, thank you and set value of cloud-inits net0 will be set.

But the server is using a dhcp ip address and not the given one? Do I need to update something inside the machine? I found this docs: https://cloudinit.readthedocs.io/en/latest/topics/network-config-format-v2.html but if i set ethernets to a blank [] (array) instead of dhcp: true it does not do anything.

 

[mira]

Please post the output of qm cloudinit dump <vmid> network

 

[pascalku]

root@pve:~# qm cloudinit dump 101 network
version: 1
config:
    - type: physical
      name: eth0
      mac_address: '2a:92:8a:9f:25:ae'
      subnets:
      - type: static
        address: '192.168.25.13'
        netmask: '255.255.0.0'
        gateway: '192.168.0.1'
    - type: nameserver
      address:
      - '192.168.0.1'
      search:
      - '<my-domain>.de'

 

[mira]

The config looks ok, so it must be something in the VM. What OS is running in the VM?

 

[pascalku]

The config looks ok, so it must be something in the VM. What OS is running in the VM?

I am running ubuntu 18.04.

 

[pascalku]

The config looks ok, so it must be something in the VM. What OS is running in the VM?

I gave the following settings from outside:
and provided the following configuration (etc/cloud/cloud.cfg.d/custom-networking.cfg):



now after a new cloud-init, the following happened: