HAProxy Enterprise Documentation 2.3r1

del ssl crt-list

Delete an entry from an SSL CRT list residing in memory.


CRT lists are text files that describe the SSL certificates used by HAProxy Enterprise. When dynamically creating and manipulating certificates, this command deletes a line from an SSL CRT list in memory.


In this example, a line reading /etc/hapee-2.3/api.pem is deleted from the in-memomry CRT list at /etc/hapee-2.3/crt-list.txt.

$ echo -e "del ssl crt-list /etc/hapee-2.3/crt-list.txt /etc/hapee-2.3/api.pem" | socat tcp-connect: -
Entry '/etc/hapee-2.3/api.pem' deleted in crtlist '/etc/hapee-2.3/crt-list.txt'!

Contextual Example

This operation is generally performed as part of a series of transactions. An example is outlined below. This example demonstrates how to upload a new certificate, attach it to HAProxy Enterprise's running configuration, and store it in a CRT list with cipher and SNI parameters. An optional delete command is included at the end.

  1. Add a CRT list to your HAproxy Enterprise configuration file on a bind line:

    frontend fe_main
       mode http
       bind :80
       bind :443 ssl crt-list /etc/hapee-2.3/certificate-list.txt ## This file must exist and contain at least one certificate, self-signed, if need be.
       http-request redirect scheme https unless { ssl_fc }
       default_backend servers
  2. Use the new ssl cert command to create an empty slot for a certificate in HAProxy's memory.

    $ echo -e "new  ssl cert /etc/hapee-2.3/certs/new_certificate.pem" | socat tcp-connect: -
    New empty certificate store '/etc/hapee-2.3/certs/new_certificate.pem'!
  3. Begin a transaction to upload the certificate into that slot by using the set ssl cert command.

    The new certificate should be in your local working directory.

    $ echo -e "set ssl cert /etc/hapee-2.3/certs/new_certificate.pem <<\n$(cat ./new_certificate.pem)\n" | socat tcp-connect: -
    Transaction created for certificate /etc/hapee-2.3/certs/new_certificate.pem!
  4. Commit the transaction:

    $ echo -e "commit ssl cert /etc/hapee-2.3/certs/new_certificate.pem" | socat tcp-connect: -
    Committing /etc/hapee-2.3/certs/new_certificate.pem
  5. Add a line to the CRT list, to add the certificate, cipher suite, and SNI options:

    $ echo -e "add ssl crt-list /etc/hapee-2.3/certificate-list.txt <<\n/etc//haproxy/certs/new_certificate.pem [alpn h2] mysite.local\n" | socat tcp-connect: -
    Inserting certificate '/etc/hapee-2.3/certs/new_certificate.pem' in crt-list '/etc//haproxy/certificate-list.txt'.
  6. Use show ssl crt-list to verify that the CRT list was updated correctly:

    $ echo "show ssl crt-list /etc/hapee-2.3/certificate-list.txt" | socat tcp-connect: -# /etc//haproxy/certificate-list.txt
    /etc/hapee-2.3/certs/test.local.pem [alpn h2 ssl-min-ver TLSv1.2] test.local
    /etc/hapee-2.3/certs/new_certificate.pem [alpn h2] mysite.local
  7. When needed, use del ssl crt-list to delete an entry from the CRT list in memory:

    $ echo -e "del ssl crt-list /etc/hapee-2.3/certificate-list.txt /etc/hapee-2.3/new_certificate.pem" | socat tcp-connect: -
    Entry '/etc/hapee-2.3/new_certificate.pem' deleted in crtlist '/etc/hapee-2.3/certificate-list.txt'!

See also

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