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This guide walks through downloading, installing, and starting Kong Enterprise on CentOS
The configuration shown in this guide is intended as an example. Depending on your
environment, you may need to make modifications and take measures to properly conclude
the installation and configuration.
Kong supports both PostgreSQL 9.5+ and Cassandra 3.11.* as its datastore. This guide provides
steps to configure PostgreSQL. For assistance in setting up Cassandra, please contact your Sales or Support representative.
To complete this installation you will need:
- A valid Bintray account. You will need your username, account password and account API Key.
- Bintray Access key:
- Bintray username:
- Bintray password:
- Bintray API key:
- The API Key can be obtained by visiting https://bintray.com/profile/edit and selecting API Key
- A supported CentOS system with root equivalent access.
- A valid Kong Enterprise license JSON file, this can be found in your Bintray account. See Accessing Your License
Step 1. Prepare to Install Kong Enterprise and Download the License File
There are two options to install Kong Enterprise on CentOS. Both require a login to Bintray.
Log in to Bintray. Your Kong Sales or Support contact will assign credentials to you.
Option 1: Download RPM file
- Go to: https://bintray.com/kong/kong-enterprise-edition-rpm/centos.
- Select the latest Kong version from the list.
- From the Kong version detail page, select the Files tab.
- Select the CentOS version appropriate for your environment. e.g.
- Save the RPM file available: e.g.
Copy the RPM file to your home directory on the CentOS system. You may use a command like:
$ scp kong-enterprise-edition-22.214.171.124.el7.noarch.rpm <centos user>@<server>:~
Optional: The following steps are for verifying the integrity of the package. They are not necessary to move on to installation.
Kong’s official Key ID is
2cac36c51d5f3726. Verify it by querying the RPM package and comparing it to the Key ID:
$ rpm -qpi kong-enterprise-edition-1.3.el7.noarch.rpm | grep Signature
Download Kong’s official public key to ensure the integrity of the RPM package:
$ curl -o kong.key https://bintray.com/user/downloadSubjectPublicKey?username=kong
$ rpm --import kong.key
$ rpm -K kong-enterprise-edition-1.3.el7.noarch.rpm
Verify you get an OK check. You should have an output similar to this:
kong-enterprise-edition-126.96.36.199.el7.noarch.rpm: rsa sha1 (md5) pgp md5 OK
Option 2: Download the Kong Repo File and Add to Yum Repo
- Click this URL to download the Kong Enterprise RPM repo file: https://bintray.com/kong/kong-enterprise-edition-rpm/rpm.
Edit the repo file using your preferred editor and alter the baseurl line as follows:
USERNAME with your Bintray account user name.
API_KEY with your Bintray API key. You can find your key on your Bintray profile page at https://bintray.com/profile/edit and selecting the API Key menu item.
RELEASEVER with the major CentOS version number on your target system. For example, for version 7.7.1908, the appropriate
RELEASEVER replacement is 7.
The result should look something like this:
Securely copy the changed repo file to your home directory on the CentOS system:
$ scp bintray--kong-kong-enterprise-edition-rpm.repo <centos user>@<server>:~
Download your Kong Enterprise License
You should now have two files in your home directory on the target CentOS system:
- Either the Kong RPM or Kong Yum repo file.
- The license file
Step 2. Install Kong Enterprise
Option 1: If installing using a downloaded RPM package
Install EPEL (Extra Packages for Enterprise Linux), if not already installed:
$ sudo yum install epel-release
Execute a command similar to the following, using the appropriate RPM file name you downloaded.
$ sudo yum install kong-enterprise-edition-1.3.el7.noarch.rpm
Option 2: If installing using the Yum repository
Move the repo file in your home directory to the /etc/yum.repos.d/ directory.
$ sudo mv bintray--kong-kong-enterprise-edition-rpm.repo /etc/yum.repos.d/
Begin the installation using the Yum repository:
$ sudo yum update -y
$ sudo yum install kong-enterprise-edition
Copy the License File
Copy the license file from your home directory to the
$ sudo cp license.json /etc/kong/license.json
Step 3. Setup PostgreSQL
Follow the instructions avaialble at https://www.postgresql.org/download/linux/redhat/ to install a supported version of PostgreSQL. Kong supports version 9.5 and higher. As an example, you can run a command set similar to:
$ sudo yum install https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm
$ sudo yum install postgresql96
$ sudo yum install postgresql96-server
Initialize the PostgreSQL database and enable automatic start.
$ sudo /usr/pgsql-9.6/bin/postgresql96-setup initdb
$ sudo systemctl enable postgresql-9.6
$ sudo systemctl start postgresql-9.6
Switch to PostgreSQL user and launch PostgreSQL.
$ sudo -i -u postgres
Create a Kong database with a username and password.
⚠️Note: Make sure the username and password for the Kong Database are
kept safe. This example uses a simple username and password for illustration purposes only. Note the database name, username and password for later.
$ psql> CREATE USER kong; CREATE DATABASE kong OWNER kong; ALTER USER kong WITH password 'kong';
Exit from PostgreSQL and return to your terminal account.
Edit the the PostgreSQL configuration file
/var/lib/pgsql/9.6/data/pg_hba.conf using your preferred editor.
Under IPv4 local connections replace
ident authentication by default. To allow the
kong user to communicate with the database locally, change the authentication method to
md5 by modifying the PostgreSQL configuration file.
$ sudo systemctl restart postgresql-9.6
Step 4. Modify Kong’s configuration file to work with PostgreSQL
Make a copy of Kong’s default configuration file.
$ sudo cp /etc/kong/kong.conf.default /etc/kong/kong.conf
Uncomment and update the PostgreSQL database properties in
/etc/kong/kong.conf using your preferred text editor. Replace pg_user, pg_password and pg_database with the values:
pg_user = kong
pg_password = kong
pg_database = kong
Step 5. Seed the Super Admin password and bootstrap Kong
Setting a password for the Super Admin before initial start-up is strongly recommended. This will permit the use of RBAC (Role Based Access Control) at a later time, if needed.
Create an environment variable with the desired Super Admin password and store the password in a safe place. Run migrations to prepare the Kong database:
$ sudo KONG_PASSWORD=<password-only-you-know> /usr/local/bin/kong migrations bootstrap -c /etc/kong/kong.conf
Start Kong Enterprise:
$ sudo /usr/local/bin/kong start -c /etc/kong/kong.conf
Verify Kong Enterprise is working:
$ curl -i -X GET --url http://localhost:8001/services
You should receive a
HTTP/1.1 200 OK message.
Step 6. Finalize your Configuration and Verify Kong was Successfully installed:
Enable and Configure Kong Manager
To access Kong Enterprise’s Graphical User Interface, Kong Manager, update the
admin_gui_url property in
/etc/kong/kong.conf file to the DNS, or IP address, of the CentOS system. For example:
admin_gui_url = http://<DNSorIP>:8002
This setting needs to resolve to a network path that will reach the CentOS host.
It is necessary to update the administration API setting to listen on the needed network interfaces on the CentOS host. A setting of
0.0.0.0:8001 will listen on port
8001 on all available network interfaces.
admin_listen = 0.0.0.0:8001, 0.0.0.0:8444 ssl
You may also list network interfaces separately as in this example:
admin_listen = 0.0.0.0:8001, 0.0.0.0:8444 ssl, 127.0.0.1:8001, 127.0.0.1:8444 ssl
Restart Kong for the setting to take effect:
$ sudo /usr/local/bin/kong restart
You may now access Kong Manager on port
Enable the Developer Portal
Kong Enterprise’s Developer Portal can be enabled by setting the
portal property to
on and setting the
portal_gui_host property to the DNS, or IP address, of the CentOS system. For example:
portal = on
portal_gui_host = <DNSorIP>:8003
Restart Kong for the setting to take effect:
$ sudo /usr/local/bin/kong restart
The final step is to enable the Developer Portal. To do this, execute the following command, updating
DNSorIP to reflect the IP or valid DNS for the CentOS system.
$ curl -X PATCH http://<DNSorIP>:8001/workspaces/default --data "config.portal=true"
You can now access the Developer Portal on the default workspace with a URL like:
If you did not receive an
HTTP/1.1 200 OK message, or need assistance completing
your setup, reach out to your Kong Support contact or go to the
Check out Kong Enterprise’s series of
Getting Started guides to get the most
out of Kong Enterprise.