Fix MySQL issues

README.md

@@ -38,10 +38,12 @@ microk8s.kubectl get pv,pvc
 microk8s.kubectl apply -f db.yml
 microk8s.kubectl logs -f pod/dbapp
 ```
-5. Test the database connection
+5. Init and test the database connection
 ```bash
 microk8s.kubectl get all
-mysql -u root -p -h dbservice.ip.address golf
+echo "show tables;" | mysql -u root -p -h dbservice.ip.address golf
+mysql -u root -p -h dbservice.ip.address gold < database/golf.sql
+echo "show tables;" | mysql -u root -p -h dbservice.ip.address golf
 ```
 6. Fine-tune the ```DBHOST``` environment variable with the IP of the dbservvice and deploy your web application
 ```bash

haproxy/Dockerfile

@@ -0,0 +1,17 @@
+FROM haproxy
+
+RUN apt-get update && apt-get install -y unzip wget rsyslog
+
+RUN wget https://releases.hashicorp.com/consul/1.6.1/consul_1.6.1_linux_amd64.zip && \
+    unzip consul_1.6.1_linux_amd64.zip
+RUN wget https://releases.hashicorp.com/consul-template/0.22.0/consul-template_0.22.0_linux_amd64.zip &&\
+    unzip consul-template_0.22.0_linux_amd64.zip
+
+ADD service.json /
+ADD docker-entrypoint.sh /
+RUN chmod +x /docker-entrypoint.sh
+
+ADD rsyslog.conf /etc/
+
+ADD haproxy.conf.ctmpl /tmp/haproxy.conf.ctmpl
+

haproxy/docker-entrypoint.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+    set -- haproxy "$@"
+fi
+
+if [ "$1" = 'haproxy' ]; then
+    shift # "haproxy"
+    # if the user wants "haproxy", let's add a couple useful flags
+    #   -W  -- "master-worker mode" (similar to the old "haproxy-systemd-wrapper"; allows for reload via "SIGUSR2")
+    #   -db -- disables background mode
+    set -- haproxy -W -db "$@"
+fi
+
+#/consul agent -join=consul --data-dir=/tmp/x --config-file=/service.json &> /dev/stdout
+
+/consul-template -consul-addr=consul:8500 -template="/tmp/haproxy.conf.ctmpl:/usr/local/etc/haproxy/haproxy.cfg:bash -c 'killall -9 haproxy; haproxy -f /usr/local/etc/haproxy/haproxy.cfg || true'"
+
+exec "$@"
+

haproxy/haproxy.conf.ctmpl

@@ -0,0 +1,22 @@
+global
+    daemon
+    user nobody
+    group nogroup
+    maxconn 4096
+
+defaults
+    mode http
+    timeout client 10s
+    timeout connect 10s
+    timeout server 10s
+
+listen http-in
+    bind *:9999
+    stats enable
+    stats auth admin:devops
+    stats uri /haproxy
+    balance roundrobin
+    option httpchk HEAD /pi/3 HTTP/1.0
+
+    {{range service "pi"}}
+    server {{.Node}} {{.Address}}:{{.Port}} check inter 10s fastinter 1s rise 2 fall 2 weight 8{{end}}

haproxy/rsyslog.conf

@@ -0,0 +1,22 @@
+# Loads the imudp into rsyslog address space
+# and activates it.
+# IMUDP provides the ability to receive syslog
+# messages via UDP.
+$ModLoad imudp
+
+# Address to listen for syslog messages to be 
+# received.
+$UDPServerAddress 0.0.0.0
+
+# Port to listen for the messages
+$UDPServerRun 514
+
+# Take the messages of any priority sent to the
+# local0 facility (which we reference in the haproxy
+# configuration) and send to the haproxy.log 
+# file.
+local0.* -/var/log/haproxy.log
+
+# Discard the rest
+& ~
+

haproxy/service.json

@@ -0,0 +1,6 @@
+{
+  "service": {
+    "name": "haproxy",
+    "port": 9999
+  }
+}

kubernetes/db.yml

@@ -21,7 +21,7 @@ spec:
   - name: mysql-db
     image: mysql
     ports:
-    - name: mysql
+    - name: mysql:5.7
       containerPort: 3306
     env:
     - name: MYSQL_ROOT_PASSWORD