.. This work is licensed under a Creative Commons Attribution 4.0 International License. .. http://creativecommons.org/licenses/by/4.0 .. (c) =================================== OPNFV Barometer Docker User Guide =================================== .. contents:: :depth: 3 :local: The intention of this user guide is to outline how to install and test the barometer, Influxdb and Grafana docker images that can be built from the Dockerfiles available in the barometer repository. Barometer docker images description ----------------------------------- .. Describe the specific features and how it is realised in the scenario in a brief manner .. to ensure the user understand the context for the user guide instructions to follow. Barometer Collectd Image ^^^^^^^^^^^^^^^^^^^^^^^^ The barometer Collectd docker image gives you a collectd installation that includes all the barometer plugins. .. note:: The Dockerfile is available in the docker/ directory in the barometer repo. The Dockerfile builds a CentOS 7 docker image. The container MUST be run as a privileged container. Collectd is a daemon which collects system performance statistics periodically and provides a variety of mechanisms to publish the collected metrics. It supports more than 90 different input and output plugins. Input plugins retrieve metrics and publish them to the collectd deamon, while output plugins publish the data they receive to an end point. collectd also has infrastructure to support thresholding and notification. Barometer docker image has enabled the following collectd plugins (in addition to the standard collectd plugins): * hugepages plugin * Open vSwitch events Plugin * Open vSwitch stats Plugin * mcelog plugin * PMU plugin * RDT plugin * virt * SNMP Agent * Kafka_write plugin Plugins and third party applications in Barometer repository that will be available in the docker image: * Open vSwitch PMD stats * ONAP VES application * gnocchi plugin * aodh plugin * Legacy/IPMI InfluxDB + Grafana Images ^^^^^^^^^^^^^^^^^^^^^^^^^ The Barometer project's InfluxDB and Grafana docker images are 2 docker images that database and graph statistics reported by the Barometer Collectd docker. InfluxDB is an open-source time series database tool which stores the data from Collectd for future analysis via Grafana, which is a open-source metrics anlytics and visualisation suite which can be accessed through any browser. Installing Docker ----------------- .. Describe the specific capabilities and usage for feature. .. Provide enough information that a user will be able to operate the feature on a deployed scenario. On Ubuntu ^^^^^^^^^^ .. note:: * sudo permissions are required to install docker. * These instructions are for Ubuntu 16.10 To install docker: .. code:: bash $ sudo apt-get install curl $ sudo curl -fsSL https://get.docker.com/ | sh $ sudo usermod -aG docker $ sudo systemctl status docker Replace above with an appropriate user name. On CentOS ^^^^^^^^^^ .. note:: * sudo permissions are required to install docker. * These instructions are for CentOS 7 To install docker: .. code:: bash $ sudo yum remove docker docker-common docker-selinux docker-engine $ sudo yum install -y yum-utils device-mapper-persistent-data lvm2 $ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo $ sudo yum-config-manager --enable docker-ce-edge $ sudo yum-config-manager --enable docker-ce-test $ sudo yum install docker-ce $ sudo usermod -aG docker $ sudo systemctl status docker Replace above with an appropriate user name. .. note:: If this is the first time you are installing a package from a recently added repository, you will be prompted to accept the GPG key, and the key’s fingerprint will be shown. Verify that the fingerprint is correct, and if so, accept the key. The fingerprint should match060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35. Retrieving key from https://download.docker.com/linux/centos/gpg Importing GPG key 0x621E9F35: Userid : "Docker Release (CE rpm) " Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35 From : https://download.docker.com/linux/centos/gpg Is this ok [y/N]: y Proxy Configuration: ^^^^^^^^^^^^^^^^^^^^ .. note:: This applies for both CentOS and Ubuntu. If you are behind an HTTP or HTTPS proxy server, you will need to add this configuration in the Docker systemd service file. 1. Create a systemd drop-in directory for the docker service: .. code:: bash $ sudo mkdir -p /etc/systemd/system/docker.service.d 2. Create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable: .. code:: bash [Service] Environment="HTTP_PROXY=http://proxy.example.com:80/" Or, if you are behind an HTTPS proxy server, create a file called /etc/systemd/system/docker.service.d/https-proxy.conf that adds the HTTPS_PROXY environment variable: .. code:: bash [Service] Environment="HTTPS_PROXY=https://proxy.example.com:443/" Or create a single file with all the proxy configurations: /etc/systemd/system/docker.service.d/proxy.conf .. code:: bash [Service] Environment="HTTP_PROXY=http://proxy.example.com:80/" Environment="HTTPS_PROXY=https://proxy.example.com:443/" Environment="FTP_PROXY=ftp://proxy.example.com:443/" Environment="NO_PROXY=localhost" 3. Flush changes: .. code:: bash $ sudo systemctl daemon-reload 4. Restart Docker: .. code:: bash $ sudo systemctl restart docker 5. Check docker environment variables: .. code:: bash sudo systemctl show --property=Environment docker Test docker installation ^^^^^^^^^^^^^^^^^^^^^^^^ .. note:: This applies for both CentOS and Ubuntu. .. code:: bash $ sudo docker run hello-world The output should be something like: .. code:: bash Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world 5b0f327be733: Pull complete Digest: sha256:07d5f7800dfe37b8c2196c7b1c524c33808ce2e0f74e7aa00e603295ca9a0972 Status: Downloaded newer image for hello-world:latest Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: .. code:: bash $ docker run -it ubuntu bash Build the barometer docker image ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ .. code:: bash $ git clone https://gerrit.opnfv.org/gerrit/barometer $ cd barometer/docker $ sudo docker build -t opnfv/barometer --build-arg http_proxy=`echo $http_proxy` \ --build-arg https_proxy=`echo $https_proxy` -f Dockerfile . .. note:: In the above mentioned ``docker build`` command, http_proxy & https_proxy arguments needs to be passed only if system is behind an HTTP or HTTPS proxy server. Check the docker images: .. code:: bash $ sudo docker images Output should contain a barometer image: .. code:: REPOSITORY TAG IMAGE ID CREATED SIZE opnfv/barometer latest 05f2a3edd96b 3 hours ago 1.2GB centos 7 196e0ce0c9fb 4 weeks ago 197MB centos latest 196e0ce0c9fb 4 weeks ago 197MB hello-world latest 05a3bd381fc2 4 weeks ago 1.84kB Download the barometer docker image ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ If you want to use a pre-built barometer image, you can pull the barometer image from https://hub.docker.com/r/opnfv/barometer/ .. code:: bash $ docker pull opnfv/barometer Run the barometer docker image ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ .. code:: bash $ sudo docker run -tid --net=host -v `pwd`/../src/collectd_sample_configs:/opt/collectd/etc/collectd.conf.d \ -v /var/run:/var/run -v /tmp:/tmp --privileged opnfv/barometer /run_collectd.sh .. note:: The docker barometer image contains configuration for all the collectd plugins. In the command above we are overriding /opt/collectd/etc/collectd.conf.d by mounting a host directory `pwd`/../src/collectd_sample_configs that contains only the sample configurations we are interested in running. *It's important to do this if you don't have DPDK, or RDT installed on the host*. Sample configurations can be found at: https://github.com/opnfv/barometer/tree/master/src/collectd/collectd_sample_configs To make some changes when the container is running run: .. code:: bash sudo docker exec -ti opnfv/barometer /bin/bash Check your docker image is running .. code:: bash sudo docker ps Build the influxdb + Grafana docker images ------------------------------------------ Build the InfluxDB Image ^^^^^^^^^^^^^^^^^^^^^^^^^ Build influxdb image from Dockerfile .. code:: bash $ cd barometer/docker/barometer-influxdb $ sudo docker build -t barometer-influxdb --build-arg http_proxy=`echo $http_proxy` \ --build-arg https_proxy=`echo $https_proxy` -f Dockerfile . .. note:: In the above mentioned ``docker build`` command, http_proxy & https_proxy arguments needs to be passed only if system is behind an HTTP or HTTPS proxy server. Check the docker images: .. code:: bash $ sudo docker images Output should contain an influxdb image: .. code:: REPOSITORY TAG IMAGE ID CREATED SIZE barometer-influxdb latest 1e4623a59fe5 3 days ago 191MB Build the Grafana Image ^^^^^^^^^^^^^^^^^^^^^^^ Build Grafana image from Dockerfile .. code:: bash $ cd barometer/docker/barometer-grafana $ sudo docker build -t barometer-grafana --build-arg http_proxy=`echo $http_proxy` \ --build-arg https_proxy=`echo $https_proxy` -f Dockerfile . .. note:: In the above mentioned ``docker build`` command, http_proxy & https_proxy arguments needs to be passed only if system is behind an HTTP or HTTPS proxy server. Check the docker images: .. code:: bash $ sudo docker images Output should contain an influxdb image: .. code:: REPOSITORY TAG IMAGE ID CREATED SIZE barometer-grafana latest 05f2a3edd96b 3 hours ago 1.2GB Download the InfluxDB and Grafana docker image ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ If you wish to use pre-built barometer project's influxdb and grafana images, you can pull the images from https://hub.docker.com/r/opnfv/barometer-influxdb/ and https://hub.docker.com/r/opnfv/barometer-grafana/ .. note:: If your preference is to build images locally please see sections `Build the InfluxDB Image`_ and `Build the Grafana Image`_ .. code:: bash $ docker pull opnfv/barometer-influxdb $ docker pull opnfv/barometer-grafana Run the Influxdb and Grafana Images ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Launch containers: .. code:: bash $ cd barometer/docker/ $ sudo docker-compose up -d Check your docker images are running .. code:: bash $ sudo docker ps Connect to :3000 with a browser and log into grafana: admin/admin Testing the docker image ^^^^^^^^^^^^^^^^^^^^^^^^ TODO References ^^^^^^^^^^^ .. [1] https://docs.docker.com/engine/admin/systemd/#httphttps-proxy .. [2] https://docs.docker.com/engine/installation/linux/docker-ce/centos/#install-using-the-repository .. [3] https://docs.docker.com/engine/userguide/