Re: [ovirt-users] Add multiple files to a VM via cloud-init

On Thu, Oct 30, 2014 at 12:52 PM, Branimir Pejakovic <branimirp(a)gmail.com <mailto:branimirp@gmail.com>> wrote: On Thu, Oct 30, 2014 at 12:39 PM, Shahar Havivi <shaharh(a)redhat.com <mailto:shaharh@redhat.com>> wrote: On 30.10.14 12:30, Branimir Pejakovic wrote: > On Thu, Oct 30, 2014 at 12:02 PM, Shahar Havivi <shaharh(a)redhat.com <mailto:shaharh@redhat.com>> wrote: > > > On 30.10.14 10:06, Branimir Pejakovic wrote: > > > On Thu, Oct 30, 2014 at 7:22 AM, Shahar Havivi <shaharh(a)redhat.com <mailto:shaharh@redhat.com>> > > wrote: > > > > > > > On 29.10.14 17:35, Branimir Pejakovic wrote: > > > > > Hi list, > > > > > > > > > > I was wondering is there a way to add multiple files to a vm via > > > > cloud-init > > > > > using python SDK. I was able to add /etc/resolv.conf and > > additionally I > > > > > would like to add config files for NICs (ifcfg-ethX) with appropriate > > > > > values (ip,gw,netmask). I used an example given here: > > > > > http://www.ovirt.org/Features/Cloud-Init_Integration . But > > > > unfortunately I > > > > > cannot do the same thing If I want to write multiple files to a vm in > > > > > params.Action class. > > > > > > > > > > Thank you in advance! > > > > you can use the custom script text box in oVirts cloud-init section, > > > > there you can add any cloud-init section - adding files examples can be > > > > found > > > > here: > > > > > > > > > > http://cloudinit.readthedocs.org/en/latest/topics/examples.html#writing-o... > > > > > > > > Shahar Havivi. > > > > > > > > > > > Hi Shahar, > > > > > > Thank you for the reply. > > > > > > To be honest I knew for those scripts but I want to do it in automate > > > fashion just like in that example that I put in my original message. I > > have > > > tried to specify in params.Files class multiple files: > > > > > > vm_file1 = params.Files(file=[params.File(name = 'file1', content = > > > file1_content, type_= 'PLAINTEXT')]) > > > vm_file2 = params.Files(file=[params.File(name = 'file2', content = > > > file2_content, type_= 'PLAINTEXT')]) > > > > > > and then give them as arguments to params.CloudInit _init_ constructor > > > (files=...) just like in that example above but it seems that I am doing > > > something wrong because it does not write multiple files - it writes only > > > when you specify one file all right. The exception is "Error: 'list' > > object > > > has no attribute 'export'" (I tried to specify those files as a list - > > > files=[vm_file1,vm_file2]). > > > > > > Thanks for any help. > > The custom script is currently the only option to add files via Cloud-Init > > > > Thanks, > > Shahar Havivi. > > > > > Hi Shahar, > > Granted. But the example in python > http://www.ovirt.org/Features/Cloud-Init_Integration uses custom script :) > I just want to know how to do the same thing in case when I want to write > more than one file to a VM - and yes - all those multiple files that I > want to write are specified via custom scripts. > > From the link - (The "Python SDK" paragraph: scontent object holds the > custom script): > > scontent = "write_files:\n- content: |\n search > example.com <http://example.com>\n nameserver 10.10.10.1\n nameserver > 10.10.10.2\n path: /etc/resolv.conf" > > For example (and just for example), I want to write to /etc/issue and > /etc/hosts not only /etc/resolv.conf. In essence, when vm goes to run-once > mode I want to write more than one file to a vm via Python (using > CloudInit) in automated fashion (and not touching oVirt GUI at all). You don't need to use the GUI, the sdks initialization have custom_script as string which is equivalent to the text box that you see in the GUI, and you can put the same content there (ie multiple files). Is that sufficient enough? Hi Shahar, Thanks! I will try this one. I was not aware of this feature. Although I can see that it was mentioned on the list (my bad). Thank you for your effort! I really do appreciate it! Hi, Please if somebody can help me because I am pretty stuck. As I said in previous posts I used this Python example http://www.ovirt.org/Features/Cloud-Init_Integration to set root password, hostname and resolv.conf. It worked without any problems for 3.4 oVirt version and equivalent Python SDK (ovirt-engine-sdk-python-3.4.x.noarch). Then, I have tried to write through yuml scripts more conf files than just resolv.conf to configure guest. I also saw this post on the list: http://lists.ovirt.org/pipermail/users/2014-October/028539.html. So based on that, I decided to upgraded oVirt and SDK (ovirt-engine-sdk-python-3.5.0.7-1.el6.noarch) to 3.5 version. The upgrade itself passed without any problem. From that point forward I tried to use custom_script parameter (as suggested by Shahar) inside Initialization class and CloudInit class without any luck. Can somebody please provide a simple Python code to submit yaml script to cloud-init? Also after the upgrade the example script I mentioned above can only change hostname. It does not write resolv.conf anymore nor it sets root password. I don't know if something is changed inside methods? For example, customization of virtual machine (memory,cpu,high availability, pinning to a certain host etc works without any problems). Thank you! Best regards, Branimir