My previous response inadvertently dropped the mailing list. I've added back here.
On Thu, May 17, 2018 at 12:23 PM, Konstantinos Papadopoulos < [email protected]> wrote: > Hello Scott, I will try option b when instantiating the image in our > openstack platform > However what I tried not successfully was to place the file > my-server-config.conf under the path /etc/cloud/cloud.cfg.d/my > -server-config.conf. > The content of the my-server-config.conf. file was > > # run commands > # default: none > # runcmd contains a list of either lists or a string > # each item will be executed in order at rc.local like level with > # output to the console > # - runcmd only runs during the first boot > # - if the item is a list, the items will be properly executed as if > # passed to execve(3) (with the first arg as the command). > # - if the item is a string, it will be simply written to the file and > # will be interpreted by 'sh' > # > # Note, that the list has to be proper yaml, so you have to quote > # any characters yaml would eat (':' can be problematic) > bootcmd: > - [ ls, -l, / ] > - [ sh, -xc, "echo $(date) ': hello world!'" ] > - [ sh, -c, echo "=========hello world'=========" ] > - ls -l /root > - [ wget, "http://slashdot.org";, -O, /tmp/index.html ] > > for which I was expecting to find the index.html file under /tmp folder. > However this did not happen. I guess I still miss something. > I just tested with your bootcmd in /etc/cloud/cloud.cfg.d/my-server-config.cfg (note .cfg extension, not .conf. sorry for that). that works as expected. Also, note though that usage of /tmp is not really safe. that is because systemd or some other thing may clean /tmp during boot. I tried also to fill the content of my conf file with the what you attached > under http://paste.ubuntu.com/p/w8QQjN4dPC/ but without success. > Is the path at l.7 correct? > > echo "$(date -R): Ran per-boot at ${up}s" | tee -a /run/my-per-boot.log > > Should it be > > echo "$(date -R): Ran per-boot at ${up}s" | tee -a /root/my-per-boot.log > > If this is the case should I expect to find the my-per-boot.log under /root? > > In the example there, I chose /run as /run (on most linux) is a tmpfs so it is guaranteed to be cleaned every boot. I used /root on the per-once messages so that you'd see that reboot did not cause that to get re-written or appended to. As a demonstration of how to test this and to show how really nice lxd is for testing cloud-init: $ lxc init ubuntu-daily:xenial mytest1 # my.cfg has content from http://paste.ubuntu.com/p/w8QQjN4dPC/ $ lxc file push my.cfg mytest1/etc/cloud/cloud.cfg.d/my.cfg $ lxc start mytest1 $ sleep 5 $ lxc exec mytest1 cat /run/my-per-boot.log Thu, 17 May 2018 17:10:53 +0000: Ran per-boot at 8.00s $ lxc exec mytest1 cat /root/my-per-once.log Thu, 17 May 2018 17:10:53 +0000: Ran per-once up 8.00s $ lxc restart mytest1 $ sleep 5 $ lxc exec mytest1 cat /run/my-per-boot.log Thu, 17 May 2018 17:12:19 +0000: Ran per-boot at 4.00s $ lxc exec mytest1 cat /root/my-per-once.log Thu, 17 May 2018 17:10:53 +0000: Ran per-once up 8.00s Thanks in advance > > Br > > Konstantinos > > > > > On Tue, May 15, 2018 at 5:08 PM, Scott Moser <[email protected]> wrote: > >> >> On Tue, May 15, 2018 at 9:53 AM, Konstantinos Papadopoulos < >> [email protected]> wrote: >> >>> Hello Scott and thank you for the reply, >>> the second option "put scripts into /var/lib/cloud/scripts/per-boot/" >>> worked as expected. So I put a script under /var/lib/cloud/scripts/per- >>> boot/ and it worked. >>> My question now is where am I going to store under /var/lib/cloud the >>> "my-write-files" you attached which is in yml form so that I have these two >>> log files written in the directories specified within the my-write-files. >>> Does the file need to have a my-write-files need to have a suffix .yml? >>> Thanks in advance >>> >> >> You have 2 options: >> a.) a file in the system in /etc/cloud/cloud.cfg.d/your-stuff.conf >> b.) provide it as user-data when you launch an instance >> > I was wrong in 'a' above. your-stuff.cfg (.cfg, not .conf). > >> 'b' is infinitely more flexible. >> >>
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