aknuds1's questions

On CoreOS 899.15.0, how do I update a previously submitted unit file via fleetctl?

I've previously submitted the unit file [email protected], but want to update it to a revised version:

$ fleetctl list-unit-files
UNIT                HASH    DSTATE      STATE       TARGET
[email protected]    76b05ae inactive    inactive    -
[email protected]              faa7a16 inactive    inactive    - 

When I try to re-submit [email protected], fleetctl only warns me that the local and registry versions of it differ:

$ fleetctl submit rethinkdb\@.service
WARNING: Unit [email protected] in registry differs from local unit file [email protected]

I am defining a one-shot service in my CoreOS cloud-config, but it is failing due to not being able to download files from Google Cloud Storage (via wget):

Apr 13 11:09:56 staging-node-ys9y.c.experimentalberlin.internal sh[1132]: Connecting to storage.googleapis.com|74.125.133.128|:443... failed: Connection timed out.

How should I ensure that the service be able to download files from the Internet?

My cloud-config

#cloud-config
coreos:
  units:
    - name: bootstrap.service
      command: start
      content: |
        [Unit]
        Description=Bootstrap instance
        After=network-online.target
        Requires=network-online.target

        [Service]
        Type=oneshot
        RemainAfterExit=true
        ExecStart=/usr/bin/mkdir -p /tmp/kubernetes-staging
        ExecStart=cd /tmp/kubernetes-staging
        ExecStart=/bin/sh -c "cd /tmp/kubernetes-staging && wget https://storage.googleapis.com/experimentalberlin/staging.tar.gz && tar xf staging.tar.gz"
        ExecStart=/tmp/kubernetes-staging/worker/bootstrap.sh

        [Install]
        WantedBy=local.target

I am running CoreOS beta 991.1.0 on a Google Compute Engine instance, where cloud-config is configured via the user_data metadata variable. My cloud-config looks like this:

#cloud-config
write_files:
  - path: "/etc/kubernetes/kube.conf"
    permissions: "0644"
    owner: "root"
    content: |
      apiVersion: v1
      kind: Config
      clusters:
      - name: kube
        cluster:
          server: https://127.0.0.1:443
          certificate-authority: /etc/kubernetes/ssl/ca.pem
      users:
      - name: kubelet
        user:
          client-certificate: /etc/kubernetes/ssl/master-client.pem
          client-key: /etc/kubernetes/ssl/master-client-key.pem
      contexts:
      - context:
          cluster: kube
          user: kubelet
ssh_authorized_keys:
  - "SECRET"
coreos:
  etcd2:
    discovery: https://discovery.etcd.io/106b575a45f2abefdaea40ebba4d0d84
    initial-advertise-peer-urls: https://$private_ipv4:2380
    listen-peer-urls: https://$private_ipv4:2380
    listen-client-urls: https://0.0.0.0:2379
    advertise-client-urls: https://$private_ipv4:2379
  units:
    - name: etcd2.service
      command: start
      drop-ins:
        - name: 30-certificates.conf
          content: |
            [Service]
            # Client Env Vars
            Environment=ETCD_TRUSTED_CA_FILE=/etc/kubernetes/ssl/ca.pem
            Environment=ETCD_CERT_FILE=/etc/kubernetes/ssl/master-client.pem
            Environment=ETCD_KEY_FILE=/etc/kubernetes/ssl/master-client-key.pem
            # Peer Env Vars
            Environment=ETCD_PEER_TRUSTED_CA_FILE=/etc/kubernetes/ssl/ca.pem
            Environment=ETCD_PEER_CERT_FILE=/etc/kubernetes/ssl/master-peer.pem
            Environment=ETCD_PEER_KEY_FILE=/etc/kubernetes/ssl/master-peer-key.pem
    - name: fleet.service
      command: start
    - name: swap.service
      command: start
      content: |
        [Unit]
        Description=Turn on swap

        [Service]
        Type=oneshot
        Environment="SWAPFILE=/swap"
        RemainAfterExit=true
        ExecStartPre=/usr/sbin/losetup -f $SWAPFILE
        ExecStart=/usr/bin/sh -c "/sbin/swapon $(/usr/sbin/losetup -j $SWAPFILE | /usr/bin/cut -d : -f 1)"
        ExecStop=/usr/bin/sh -c "/sbin/swapoff $(/usr/sbin/losetup -j $SWAPFILE | /usr/bin/cut -d : -f 1)"
        ExecStopPost=/usr/bin/sh -c "/usr/sbin/losetup -d $(/usr/sbin/losetup -j $SWAPFILE | /usr/bin/cut -d : -f 1)"

        [Install]
        WantedBy=local.target

However, even though I have configured etcd2 to start on boot, it doesn't. Why won't etcd2 start automatically?

I've got CoreOS beta 991.1.0 running on Google Compute Engine, and cloud-config is applied via the GCE instance's user_data metadata variable. How can I print the currently active cloud-config (for debugging purposes)?

I am suffering from excessive memory usage, currently amounting to ~940 MB physical and ~1 GB swap memory, on my Ubuntu 15.04 x64 Docker (1.9.1-cs2, build 4ade326) host. According to top, Docker is responsible for the consumption of about 780 MB of swap memory. How can I figure out why Docker is using so much swap?

I am mainly running a Node.js Docker container, which doesn't seem to consume that much memory. The memory usage is also rising over a few hours, as it's quite modest after booting up.

Is it possible to enable MSMQ from PowerShell on Windows 8(.1)? If so, how does one do this?

I've set up IIS 7 on my Windows 2008 R2 server according to this guide and deployed my ASP.NET MVC application on it via the one-click publishing method in Visual Studio 2010, but the IIS server fails to run the application due to a configuration error:

Parser Error Message: Could not load file or assembly 'System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

How do I fix this?

We're serving some NFS shares from a Windows Server 2008 R2 x64 machine, that are accessed by Solaris 5.10 clients. How do we configure authentication so that a certain group have write permission to the shares from Solaris? Thanks for any help! :)

We've mounted a CIFS share from a Windows Server 2008 R2 machine on an RHEL 4u6 box, as 'cifs' filesystem, with full permissions on both the Windows and Linux sides so that it is possible to write to the mounted filesystem on Linux. However, we can't successfully touch files in the filesystem:

touch: setting times of `/mnt/testhub/testfile': Permission denied

What is the reason that touch fails? I've seen that for instance vim, on other hand, is able to update file modification times.

We need to serve NFS shares from our Windows Server 2008 R2 machine to Solaris 5.10 clients, since apparently we are unable to mount SMB shares on our Solaris 5.10 machines :( What's the recommended NFS server technology on this platform? Is Windows services for UNIX a good alternative?

I am trying to control a remote Python script, which reads commands from stdin, via psexec 1.98, but I need to redirect psexec's input since psexec itself will be launched from another program. However, I have no luck making psexec accept redirected input. Is it supposed to work at all?

An example of what I'm trying to do, where input is a file containing input to the remote script:

psexec \\mymachine python c:\script.py < input