Transitioning to HAProxy 1.8
Haproxy 1.8 brings in a specific change that breaks us: It removes the haproxy-systemd-wrapper which we use in order to be able to reload the config file without restarting the whole container (important in TLS scenarios). We fix this by calling the haproxy binary directly and using the master-worker mode (-Ws) which allows to receive a SIGUSR2 command which will then reload the config for all the workers. It should also not background. This commit keeps backward compatibility with current HAProxy to ease the transition to new HAProxy. Co-Authored-By: Damien Ciabrini <dciabrin@redhat.com> Change-Id: I93943efefa22b9107c85f9f5e0bd4c3c1ab867ed
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@ -174,7 +174,10 @@ outputs:
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- null
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kolla_config:
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/var/lib/kolla/config_files/haproxy.json:
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command: /usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg
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# HAProxy 1.8 doesn't ship haproxy-systemd-wrapper, we have
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# to use a new dedicated option for live config reload.
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# Note: we can't use quotes in kolla command, hence the workaround
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command: bash -c $* -- eval if [ -f /usr/sbin/haproxy-systemd-wrapper ]; then exec /usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg; else exec /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -Ws; fi
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config_files:
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- source: "/var/lib/kolla/config_files/src/*"
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dest: "/"
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@ -193,7 +193,10 @@ outputs:
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data: *tls_mapping
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kolla_config:
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/var/lib/kolla/config_files/haproxy.json:
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command: /usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg
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# HAProxy 1.8 doesn't ship haproxy-systemd-wrapper, we have
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# to use a new dedicated option for live config reload.
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# Note: we can't use quotes in kolla command, hence the workaround
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command: bash -c $* -- eval if [ -f /usr/sbin/haproxy-systemd-wrapper ]; then exec /usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg; else exec /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -Ws; fi
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config_files:
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- source: "/var/lib/kolla/config_files/src/*"
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dest: "/"
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