{"id":820,"date":"2015-06-18T13:06:28","date_gmt":"2015-06-18T13:06:28","guid":{"rendered":"http:\/\/www.incredigeek.com\/home\/?p=820"},"modified":"2015-09-16T16:24:15","modified_gmt":"2015-09-16T16:24:15","slug":"how-to-install-zenoss-5-on-centos-7","status":"publish","type":"post","link":"https:\/\/www.incredigeek.com\/home\/how-to-install-zenoss-5-on-centos-7\/","title":{"rendered":"How to Install Zenoss 5 on CentOS 7"},"content":{"rendered":"
\n

Note:<\/h1>\n
    \n
  1. This is not a comprehensive guide, if you need more info, refer to the installation manual here<\/a>.<\/li>\n
  2. This assumes that all your partitions are going to be on one drive<\/li>\n<\/ol>\n

    Installing CentOS 7<\/strong><\/em><\/h1>\n

    Note: If you have issues installing CentOS via the default install interface, try using the Fallback graphics mode, found in the Grub boot menu under “trubbleshooting”.<\/em><\/p>\n

    Install CentOS like you normally would, just be sure to leave at least 60GB of free space for Docker\/Zenoss<\/em><\/p>\n

    \"2\"<\/a><\/em><\/p>\n

    You can Select Automatic Partitioning, but you will need to make additional space available.\u00a0 I just configured it manually.\"3\"<\/a><\/em><\/p>\n

    \u00a0Note that I have about 75GB of free space, this will be used for “\/var\/lib\/docker” and “\/opt\/serviced\/var\/volumes”.\u00a0 We’ll set these up later on.\"1\"<\/a><\/em><\/p>\n

    You don’t necessarily need to setup a user, but you can if you want to.\u00a0 \"4\"<\/a><\/em><\/p>\n

    Once your finished reboot and login.\"5\"<\/a><\/em><\/p><\/blockquote>\n

     <\/p>\n

    Configuring CentOS for Zenoss<\/strong><\/h1>\n

    Setup network<\/strong><\/em><\/p>\n

    You will need to setup your network settings.\u00a0 Refer to this<\/a> post to set a static IP address if needed.<\/em><\/p>\n

     <\/p>\n

    Note: In CentOS 7 ifconfig is not installed by default.\u00a0 If you need to check the IP address use the following command.<\/p>\n

    ip addr sh<\/em><\/pre>\n
    After your connected to the internet you can install ifconfig with<\/em><\/p>\n
    yum install -y net-tools<\/em><\/pre>\n
    Setup Hostname<\/strong><\/em><\/p>\n
    Zenoss seems to have issues if you change the hostname after it is installed so be sure to set up the hostname before you start installing zenoss.<\/em><\/p>\n
    Check current hostname<\/em><\/p>\n
    hostname<\/pre>\n
    Change the hostname.\u00a0 Replace “newhostname” with your new hostname.
    \n<\/em><\/p><\/blockquote>\n
    \n
    hostnamectl set-hostname newhostname<\/em><\/pre>\n
    After you finish configuring the hostname, add it to “\/etc\/hosts” with the following command.\u00a0 Change the IP address and the hostname “zenoss” to your systems IP address and hostname.<\/em><\/p>\n
    echo \"192.168.56.101   zenoss\" >> \/etc\/hosts<\/pre>\n
    Update your system
    \n<\/strong><\/em><\/p>\n
    yum update -y<\/em><\/pre>\n
    Disable Firewall<\/strong><\/em><\/p>\n
    systemctl stop firewalld && systemctl disable firewalld<\/em><\/pre>\n
    Enable persistent log storage<\/strong><\/em><\/p>\n
    mkdir -p \/var\/log\/journal && systemctl restart systemd-journald<\/em><\/pre>\n
    Create two Btrfs file systems<\/strong><\/em><\/p>\n
    First create two normal linux partitions using your favorite disk utility.\u00a0 I am using cfdisk.\u00a0 Each partition should be over 30GB.<\/em><\/p>\n
    cfdisk \/dev\/sda<\/em><\/pre>\n
    \"6\"<\/a><\/em><\/p>\n
    Create two Primary partitions and put them at the end and then write and exit.<\/em><\/p>\n
    \"7\"<\/a><\/em><\/p>\n
    Take note of the two new partitions names.\u00a0 Mine are “sda4” and “sda3”.
    \n<\/em><\/p>\n
    After the above changes are made, it would be a good idea to reboot the machine so the partition table can be updated.<\/em><\/p>\n
    reboot<\/em><\/pre>\n
    Now we will reformat the two partitions as Btrfs<\/em><\/p>\n
    Create mount point.<\/em><\/p>\n
    mkdir -p \/var\/lib\/docker \/opt\/serviced\/var\/volumes<\/em><\/pre>\n
    Change “\/dev\/sda3” and “\/dev\/sda4” to your partitions names if they are different.
    \n<\/em><\/p>\n
    DOCKER_PART=\/dev\/sda3\r\nAPP_PART=\/dev\/sda4\r\nmkfs -t btrfs --nodiscard $DOCKER_PART\r\nmkfs -t btrfs --nodiscard $APP_PART<\/pre>\n
    Add the new file systems to fstab, so they automatically mount on boot.<\/em><\/p>\n
    APP_PATH=\"\/opt\/serviced\/var\/volumes\"\r\necho \"$DOCKER_PART \/var\/lib\/docker btrfs rw,noatime,nodatacow 0 0\" >> \/etc\/fstab\r\necho \"$APP_PART $APP_PATH btrfs rw,noatime,nodatacow 0 0\" >> \/etc\/fstab<\/em><\/pre>\n
    Mount the new filesystems, and make sure that they mounted<\/em><\/p>\n
    mount -a\r\nif [[ `mount | egrep 'docker|serviced'` ]]; then echo \"Mounted\" ; else echo \"Not Mounted\" ; fi<\/em><\/pre>\n
    You can manually check by running the following command.<\/em><\/p>\n
    mount | egrep 'docker|serviced'<\/em><\/pre>\n
    you should receive something like the following<\/em><\/p>\n
    \/dev\/sda3 on \/var\/lib\/docker type btrfs (rw,noatime,seclabel,nodatasum,nodatacow,space_cache)\r\n\/dev\/sda4 on \/opt\/serviced\/var\/volumes type btrfs (rw,noatime,seclabel,nodatasum,nodatacow,space_cache)<\/em><\/pre>\n
    Disable SELinux<\/strong><\/p>\n
    By default SELinux is installed and enabled.\u00a0 To disable SELinux either edit the config file “\/etc\/selinux\/config” and change “SELINUX=enforcing” to “SELINUX=disabled”, or you can run the following command.<\/em><\/p>\n
    EXT=$(date +\"%j-%H%M%S\")\r\nsudo sed -i.${EXT} -e 's\/^SELINUX=.*\/SELINUX=disabled\/g' \\\r\n\/etc\/selinux\/config && \\\r\ngrep '^SELINUX=' \/etc\/selinux\/config<\/em><\/pre>\n
    Enable Dnsmasq<\/strong><\/p>\n
    systemctl enable dnsmasq && systemctl start dnsmasq<\/pre>\n
    Install and Configure NTP<\/h1>\n
    yum install -y ntp && systemctl enable ntpd<\/pre>\n
    Have NTP start on system boot and then start NTP<\/p>\n
    echo \"systemctl start ntpd\" >> \/etc\/rc.d\/rc.local\r\nchmod +x \/etc\/rc.d\/rc.local\r\nsystemctl start ntpd<\/pre>\n
    Download and install the Zenoss repository<\/strong><\/h1>\n
    rpm -ivh http:\/\/get.zenoss.io\/yum\/zenoss-repo-1-1.x86_64.rpm\r\nyum clean all<\/pre>\n
    Final Reboot<\/h1>\n
    reboot<\/pre>\n
     <\/p><\/blockquote>\n
    Installing Zenoss<\/strong><\/h1>\n
     <\/p>\n
    Once your logged back into the system start installing zenoss<\/p>\n
    Install the Zenoss-core service and start docker<\/p>\n
    yum --enablerepo=zenoss-stable install -y zenoss-core-service\r\nsystemctl start docker<\/pre>\n
    Add the Btrfs and DNS flags to the Docker startup options<\/strong><\/p>\n
    Identify ip for docker<\/p>\n
    ip addr | grep -A 2 'docker0:' | grep inet<\/pre>\n
    Add the docker startup options.\u00a0 Change the ip address if needed.\u00a0 It should match the one from the previous command.<\/p>\n
    echo 'DOCKER_OPTS=\"-s btrfs --dns=172.17.42.1\"' >> \/etc\/sysconfig\/docker<\/pre>\n
    Change the volume type for application data<\/strong><\/p>\n
    You can manually edit the serviced file “\/etc\/default\/serviced” and change the variable “SERVICED_FS_TYPE” from “rsync” to “btrfs” or run the following command.<\/p>\n
    EXT=$(date +\"%j-%H%M%S\")\r\n sudo sed -i.${EXT} \\\r\n -e 's|^#[^S]*\\(SERVICED_FS_TYPE=\\).*$|\\1btrfs|' \\\r\n \/etc\/default\/serviced<\/pre>\n
    Restart docker<\/strong><\/p>\n
    systemctl stop docker && systemctl start docker<\/pre>\n
    Start the control center<\/strong><\/p>\n
    systemctl start serviced<\/pre>\n
    you can monitor the process with<\/p>\n
    journalctl -u serviced -f<\/pre>\n
    Serviced has about 5-10 minutes worth of work to do before you’ll be able to login to the Control Center interface.\u00a0 If the service fails to start, reboot the server.<\/p>\n
    Setting up name resolution<\/strong><\/p>\n
    To setup name resolution on you local computer just add the following line to your “hosts” file.\u00a0 On Linux and OS X this is located in “\/etc\/hosts” On Windows machines it is under “\\Windows\\Sytem32\\Drivers\\etc\\hosts”<\/p>\n
    192.168.56.101 hostname zenoss5.hostname hbase.hostname opentsdb.hostname rabbitmq.hostname<\/pre>\n
    Be sure to change the IP address and “hostname”\u00a0 to the IP address and hostname of your server.\u00a0 You also might need administrative privileges to edit the hosts file.<\/p>\n
    \"10\"<\/a><\/p>\n
    Logging into the Control Center.<\/strong><\/p>\n
    Now open up a web browser and go the following URL.\u00a0 Change the IP address to your servers IP.<\/p>\n
    https:\/\/192.168.56.101\r\n<\/em><\/pre>\n
    Login with the Zenoss server root username and password.\u00a0 If you want to setup a user other then root, please refer to the Zenoss Installation guide here<\/a>.<\/p>\n
    \"11\"<\/a><\/p>\n
    Change the hostname to your Zenoss server hostname\"12\"<\/a><\/p>\n
    Select the check boxes in the next two steps.\"13\"<\/a> \"14\"<\/a><\/p>\n
    Give it a deployment id and deploy it.\"15\"<\/a> \"16\"<\/a><\/p>\n
    Once it is deployed Make sure that it is started.\u00a0 Once it finishes go log into Zenoss.\u00a0 It can take awhile for Zenoss to start up, depending on your hardware, so be patient.<\/p>\n
    The Direct URL for Zenoss is<\/p>\n
    https:\/\/zenoss5.hostname<\/pre>\n
     <\/p>\n
     <\/p>\n","protected":false},"excerpt":{"rendered":"
    Note: This is not a comprehensive guide, if you need more info, refer to the installation manual here. This assumes that all your partitions are going to be on one drive Installing CentOS 7 Note: If you have issues installing … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,3,198],"tags":[230,17,208,229,7,134,199,228],"class_list":["post-820","post","type-post","status-publish","format-standard","hentry","category-centos-linux","category-linux","category-zenoss","tag-cent-os","tag-centos","tag-centos-7","tag-installing","tag-linux-2","tag-monitoring","tag-zenoss-2","tag-zenoss-5"],"_links":{"self":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts\/820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/comments?post=820"}],"version-history":[{"count":62,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts\/820\/revisions"}],"predecessor-version":[{"id":1164,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts\/820\/revisions\/1164"}],"wp:attachment":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/media?parent=820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/categories?post=820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/tags?post=820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}