Can you install CoreOS on [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Server Fault. Closed 7 years ago. Improve this question Does anybody know how, even if it is possible, to install CoreOS on ? Answer The first question for would probably … Read more

Is transparent hugepage support on or off on these CoreOS machines?

I have a number of CoreOS servers that will be running some database workloads that highly recommend Transparent Hugepages be disabled. However: ~$ cat /sys/kernel/mm/transparent_hugepage/enabled cat: /sys/kernel/mm/transparent_hugepage/enabled: No such file or directory Sure enough, the path /sys/kernel/mm/transparent_hugepage doesn’t exist. But I’m not really convinced it’s switched off. ~$ cat /proc/meminfo | grep huge HardwareCorrupted: 0 … Read more

coreos mount cifs or sshfs or any other networked file system

For development I want to mount a file share from my windows dev box inside my CoreOS VM, so I can then mount that volume inside a container. CoreOS doesn’t appear to support doing this, and comes with no package manager; the idea being it is only a minimalist host for containers. $ cat /proc/filesystems … Read more

Cannot access ports behind VPC on AWS

I am running two servers on a VPC in AWS. One is an ubuntu server running mongodb on port 27017 and the only public port is 22. On a separate CoreOS server I have several containers that are supposed to connect to this database, the only public ports on this server are 80, 443 and … Read more

CoreOS persistant data storage ( creation + backup + restore )?

Im planning to move my whole server stack to coreOS and using docker. The problem is currently there seems to be no good solutions to create a persistant data storage , back it up and easily restore it when needed? I know one can create inside the cloud-config.yml a data mount but are there opensource … Read more

Mounting a drive via systemd unit file on CoreOS unsuccessful

When I’m trying to mount a formatted drive via a systemd unit (from my cloud_config): – name: var-lib-ceph-osd-ceph\x2d1.mount command: start content: | [Unit] Description=Mount Ceph disk (/dev/sdb) to /var/lib/ceph/osd/ceph-${} Before=docker.service [Mount] What=/dev/sdb Where=/var/lib/ceph/osd/ceph-1 Type=btrfs User=64045 Group=64045 but unfortunately if fails with a status=217/USER error. $ systemctl status “var-lib-ceph-osd-ceph\\x2d1.mount” â var-lib-ceph-osd-ceph\x2d1.mount – Mount Ceph disk (/dev/sdb) … Read more

CoreOS mounting CIFS on reboot

I am able to mount a drive Windows share drive on CoreOS, using I have created a service inside $ sudo vim /etc/systemd/system/mount.service [Unit] Description=Mount Share service [Service] Type=oneshot RemainAfterExit=yes TimeoutStartSec=0 ExecStart=/opt/bin/mount.cifs // /ccc/smb -o domain=server-apps.continental.local,username=usernam,password=password,uid=0,gid=0 [Install] On reboot, I get this Mar 08 10:21:24 araweelo coreos-cloudinit[670]: 2016/03/08 10:21:24 Ensuring runtime unit … Read more

Error pulling dependent layers – HTTP code 400

I have setup CoreOS but am having issues building Docker, I keep getting errors like as an example. $ docker run -t -i ubuntu cat /etc/issue Unable to find image ‘ubuntu:latest’ locally latest: Pulling from library/ubuntu 2027caa30175: Verifying Checksum 1a094f2972de: Verifying Checksum c3eb196f68a8: Already exists 6dba05475398: Already exists Pulling repository ab035c88d533: Error pulling image … Read more

cloud-config file not loaded and units not started on machine created from AMI

We are working on a code that does the following using terraform (on AWS): Creates a core-os instance (1) with the cloud-config yaml file we provided Creates an AMI from that instance The process works perfectly fine up till here. When we launch an instance (2) from that AMI, through AWS console. The newly launched … Read more