OpenStack: Automatically update haproxy config

[flaper87]

No description provided.

[flaper87]

/test e2e-libvirt

[flaper87]

/test e2e-libvirt

[openshift-ci-robot]

@flaper87: The following tests failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
ci/prow/e2e-openstack	d21c9f8	link	/test e2e-openstack
ci/prow/e2e-libvirt	d21c9f8	link	/test e2e-libvirt

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[trown]

/lgtm

This worked against vexxhost for me.

[openshift-ci-robot]

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[russellb]

if anyone else is curious what this does ...

source = "data:,#!/bin/bash

set -x

export KUBECONFIG=/opt/openshift/auth/kubeconfig
TEMPLATE="{{range .items}}{{\$name:=.metadata.name}}{{range .status.conditions}}{{if eq .type \"Ready\"}}{{if eq .status \"True\" }}{{\$name}}{{end}}{{end}}{{end}} {{end}}"
MASTERS=$(oc get nodes -l node-role.kubernetes.io/master -ogo-template="$TEMPLATE")
WORKERS=$(oc get nodes -l node-role.kubernetes.io/worker -ogo-template="$TEMPLATE")

if [[ $MASTERS -eq "" ]];
then
    MASTER_LINES="
    server ${var.cluster_name}-bootstrap-443 ${var.cluster_name}-bootstrap.${var.cluster_domain} check port 49500
    server ${var.cluster_name}-bootstrap-6443 ${var.cluster_name}-bootstrap.${var.cluster_domain} check port 6443"
    MASTERS="${var.cluster_name}-master-0 ${var.cluster_name}-master-1 ${var.cluster_name}-master-2"
fi

for master in $MASTERS;
do
    MASTER_LINES="$MASTER_LINES
    server $master $master.${var.cluster_domain} check port 6443"
done

for worker in $WORKERS;
do
    WORKER_LINES="$WORKER_LINES
    server $worker $worker.${var.cluster_domain} check port 443"
done

cat > /etc/haproxy/haproxy.cfg.new << EOF
listen ${var.cluster_name}-api-masters
    bind 0.0.0.0:80
    bind 0.0.0.0:6443
    bind 0.0.0.0:49500
    mode tcp
    balance roundrobin$MASTER_LINES

listen ${var.cluster_name}-api-workers
    bind 0.0.0.0:443
    mode tcp
    balance roundrobin$WORKER_LINES
EOF


mkdir -p /etc/haproxy
CHANGED=$(diff /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.new)

if [[ ! -f /etc/haproxy/haproxy.cfg ]] || [[ ! $CHANGED -eq "" ]];
then
    cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.backup || true
    cp /etc/haproxy/haproxy.cfg.new /etc/haproxy/haproxy.cfg
    systemctl restart haproxy
fi