Traffic Ops - Installing¶
The user must have the following for a successful minimal install:
- CentOS 7+
- 2 machines or Virtual Machines (VMs), each with at least 2 (v)CPUs, 4GB of RAM, and 20 GB of disk space.
- Access to CentOS Base and EPEL repositories
- Access to The Comprehensive Perl Archive Network (CPAN)
As of version 2.0 only PostgreSQL is supported as the database. This documentation assumes CentOS 7.2 and PostgreSQL 9.6.3 for a production install.
Install PostgreSQL Database
For more information on installing PostgreSQL, see their documentation.
For a production install it is best to install PostgreSQL on its own server/VM. To install PostgreSQL, on the PostgreSQL host (hostname
pgin example), run the following commands as the root user (or with
yum update -y yum install -y https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm yum install -y postgresql96-server su - postgres -c '/usr/pgsql-9.6/bin/initdb -A md5 -W' #-W forces the user to provide a superuser (postgres) password
/var/lib/pgsql/9.6/data/pg_hba.confto allow your Traffic Ops instance to access the PostgreSQL server. For example if you are going to install Traffic Ops on
host all all 188.8.131.52/32 md5
to the appropriate section of this file. Edit the
/var/lib/pgsql/9.6/data/postgresql.conffile to add the appropriate listen_addresses or
listen_addresses = '*', set
timezone = 'UTC', and start the database:
systemctl enable postgresql-9.6 systemctl start postgresql-9.6 systemctl status postgresql-9.6
Build a Traffic Ops
.rpmfile using the instructions under the Building Traffic Control page.
Install PostgreSQL. To install the PostgreSQL 9.6 yum repository, run this command as the root user (or with
yum install -y https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm
Install the Traffic Ops RPM. The Traffic Ops RPM file should have been built in an earlier step. To install it, simply run the following command as the root user (or with
yum install -y ./dist/traffic_ops-2.0.0-xxxx.yyyyyyy.el7.x86_64.rpm
This will install the PostgreSQL client,
psqlas a dependency.
Install Additional Packages. Some packages on which Traffic Ops depends not have been installed as direct dependencies of the
traffic_ops-<version stuff>.rpm. To explicitly install these, run the following commands as the root user (or with
yum install -y git wget -q https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz -O go.tar.gz tar -C /usr/local -xzf go.tar.gz PATH=$PATH:/usr/local/go/bin # go binaries are needed in the path for the 'postinstall' script go get bitbucket.org/liamstask/goose/cmd/goose
These are for the Traffic Control version 2.0.0 install, this may change, but the explicit installs won’t hurt.
Login to the Database from the Traffic Ops machine. At this point you should be able to login from the Traffic Ops (hostname
toin the example) host to the PostgreSQL (hostname
pgin the example) host like so:
to-# psql -h 184.108.40.206 -U postgres Password for user postgres: psql (9.6.3) Type "help" for help. postgres=#
Create the User and Database. In this example, we use user:
to-# psql -U postgres -h 220.127.116.11 -c "CREATE USER traffic_ops WITH ENCRYPTED PASSWORD 'tcr0cks';" Password for user postgres: CREATE ROLE to-# createdb traffic_ops --owner traffic_ops -U postgres -h 18.104.22.168 Password: to-#
postinstallScript. Now, run the following command as the root user (or with
postinstallscript will first get all packages needed from CPAN. This may take a while, expect up to 30 minutes on the first install. If there are any prompts in this phase, please just answer with the defaults (some CPAN installs can prompt for install questions). When this phase is complete, you will see
Complete! Modules were installed into /opt/traffic_ops/app/local. Some additional files will be installed, and then it will proceed with the next phase of the install, where it will ask you about the local environment for your CDN. Please make sure you remember all your answers and verify that the database answers match the information previously used to create the database. Example output:
===========/opt/traffic_ops/app/conf/production/database.conf=========== Database type [Pg]: Database type: Pg Database name [traffic_ops]: Database name: traffic_ops Database server hostname IP or FQDN [localhost]: 22.214.171.124 Database server hostname IP or FQDN: 126.96.36.199 Database port number : Database port number: 5432 Traffic Ops database user [traffic_ops]: Traffic Ops database user: traffic_ops Password for Traffic Ops database user: Re-Enter Password for Traffic Ops database user: Writing json to /opt/traffic_ops/app/conf/production/database.conf Database configuration has been saved ===========/opt/traffic_ops/app/db/dbconf.yml=========== Database server root (admin) user [postgres]: Database server root (admin) user: postgres Password for database server admin: Re-Enter Password for database server admin: Download Maxmind Database? [yes]: Download Maxmind Database?: yes ===========/opt/traffic_ops/app/conf/cdn.conf=========== Generate a new secret? [yes]: Generate a new secret?: yes Number of secrets to keep? : Number of secrets to keep?: 10 Not setting up ldap ===========/opt/traffic_ops/install/data/json/users.json=========== Administration username for Traffic Ops [admin]: Administration username for Traffic Ops: admin Password for the admin user: Re-Enter Password for the admin user: Writing json to /opt/traffic_ops/install/data/json/users.json ===========/opt/traffic_ops/install/data/json/openssl_configuration.json=========== Do you want to generate a certificate? [yes]: Country Name (2 letter code): US State or Province Name (full name): CO Locality Name (eg, city): Denver Organization Name (eg, company): Super CDN, Inc Organizational Unit Name (eg, section): Common Name (eg, your name or your server's hostname): RSA Passphrase: Re-Enter RSA Passphrase: ===========/opt/traffic_ops/install/data/json/profiles.json=========== Traffic Ops url [https://localhost]: Traffic Ops url: https://localhost Human-readable CDN Name. (No whitespace, please) [kabletown_cdn]: blue_cdn Human-readable CDN Name. (No whitespace, please): blue_cdn DNS sub-domain for which your CDN is authoritative [cdn1.kabletown.net]: blue-cdn.supercdn.net DNS sub-domain for which your CDN is authoritative: blue-cdn.supercdn.net Writing json to /opt/traffic_ops/install/data/json/profiles.json Downloading Maxmind data --2017-06-11 15:32:41-- http://geolite.maxmind.com/download/geoip/database/GeoLite2-City.mmdb.gz Resolving geolite.maxmind.com (geolite.maxmind.com)... 2400:cb00:2048:1::6810:262f, 2400:cb00:2048:1::6810:252f, 188.8.131.52, ... Connecting to geolite.maxmind.com (geolite.maxmind.com)|2400:cb00:2048:1::6810:262f|:80... connected. ... much SQL output skipped Starting Traffic Ops Restarting traffic_ops (via systemctl): [ OK ] Waiting for Traffic Ops to restart Success! Postinstall complete.
¶ Field Description Database type This requests the type of database to be used. Answer with the default - ‘Pg’ to indicate a PostgreSQL database. Database name The name of the database Traffic Ops uses to store the configuration information. Database server hostname IP or FQDN The hostname of the database server (
pgin the example).
Database port number The database port number. The default value, 5432, should be correct unless you changed it during the setup. Traffic Ops database user The username Traffic Ops will use to read/write from the database. Password for Traffic Ops The password for the database user that Traffic Ops uses. Database server root (admin) user name Privileged database user that has permission to create the database and user for Traffic Ops. Database server root (admin) user password The password for the privileged database user. Traffic Ops URL The URL to connect to this instance of Traffic Ops, usually https://<Traffic Ops host FQDN>/ Human-readable CDN Name The name of the first CDN which Traffic Ops will be manage. DNS sub-domain for which your CDN is authoritative The DNS domain that will be delegated to this Traffic Control CDN. Administration username for Traffic Ops The Administration (highest privilege) Traffic Ops user to create. Use this user to login for the first time and create other users. Password for the admin user The password for the administrative Traffic Ops user.
Traffic Ops is now installed!
To complete the Traffic Ops Setup See: Default Profiles
Upgrading Traffic Ops¶
To upgrade from older Traffic Ops versions, run the following commands as the root user (or with
systemctl stop traffic_ops yum upgrade traffic_ops pushd /opt/traffic_ops/app/ PERL5LIB=/opt/traffic_ops/app/lib:/opt/traffic_ops/app/local/lib/perl5 ./db/admin.pl --env production upgrade
After this completes, see Traffic Ops - Installing to run the
postinstall script, has finished, run the following command as the root user (or with
systemctl start traffic_ops