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Upgrading HAProxy Load Balancer for ThingsBoard PE from AWS Marketplace
This guide describes how to remove dockerized version of HAProxy Load Balancer and install HAProxy with Let’s Encrypt
as ubuntu service for ThingsBoard Professional Edition from AWS Marketplace.
Connect to your ThingsBoard PE AWS instance over SSH
Below is example command as a reference:
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$ ssh -i <PRIVATE-KEY> ubuntu@<PUBLIC_DNS_NAME>
or goto EC2 instances and locate your ThingsBoard PE instance.
Then select Actions -> Connect and follow instructions provided in Connect To Your Instance dialog.
Remove dockerized version of HAProxy Load Balancer
Execute the following commands to remove HAProxy docker containers and docker services:
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$ cd /usr/share/tb-haproxy && docker-compose down -v && cd ~
$ sudo apt-get purge -y docker-engine docker docker.io docker-ce
$ sudo apt-get autoremove -y --purge docker-engine docker docker.io docker-ce
$ sudo rm -rf /var/lib/docker && sudo groupdel docker && sudo rm -rf /var/run/docker.sock
Install HAProxy Load Balancer package
Execute the following commands to install HAProxy package:
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$ sudo add-apt-repository ppa:vbernat/haproxy-1.7
$ sudo apt-get update
$ sudo apt-get install haproxy openssl
Install Certbot package
Execute the following commands to install Certbot package:
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$ sudo apt-get install ca-certificates certbot
Install default self-signed certificate
Execute the following commands to install default self-signed certificate:
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$ cat << EOT | sudo tee /usr/bin/haproxy-default-cert
#!/bin/sh
set -e
HA_PROXY_DIR=/usr/share/tb-haproxy
CERTS_D_DIR= \$ {HA_PROXY_DIR}/certs.d
TEMP_DIR=/tmp
PASSWORD= \$ (openssl rand -base64 32)
SUBJ="/C=US/ST=somewhere/L=someplace/O=haproxy/OU=haproxy/CN=haproxy.selfsigned.invalid"
KEY= \$ {TEMP_DIR}/haproxy_key.pem
CERT= \$ {TEMP_DIR}/haproxy_cert.pem
CSR= \$ {TEMP_DIR}/haproxy.csr
DEFAULT_PEM= \$ {HA_PROXY_DIR}/default.pem
if [ ! -e \$ {HA_PROXY_DIR} ]; then
mkdir -p \$ {HA_PROXY_DIR}
fi
if [ ! -e \$ {CERTS_D_DIR} ]; then
mkdir -p \$ {CERTS_D_DIR}
fi
# Check if default.pem has been created
if [ ! -e \$ {DEFAULT_PEM} ]; then
openssl genrsa -des3 -passout pass: \$ {PASSWORD} -out \$ {KEY} 2048 &> /dev/null
sleep 1
openssl req -new -key \$ {KEY} -passin pass: \$ {PASSWORD} -out \$ {CSR} -subj \$ {SUBJ} &> /dev/null
sleep 1
cp \$ {KEY} \$ {KEY}.org &> /dev/null
openssl rsa -in \$ {KEY}.org -passin pass: \$ {PASSWORD} -out \$ {KEY} &> /dev/null
sleep 1
openssl x509 -req -days 3650 -in \$ {CSR} -signkey \$ {KEY} -out \$ {CERT} &> /dev/null
sleep 1
cat \$ {CERT} \$ {KEY} > \$ {DEFAULT_PEM}
echo \$ {PASSWORD} > \$ {HA_PROXY_DIR}/password.txt
fi
EOT
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$ sudo chmod +x /usr/bin/haproxy-default-cert
$ sudo haproxy-default-cert
Execute the following command to create HAProxy Load Balancer configuration file:
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$ cat << EOT | sudo tee /etc/haproxy/haproxy.cfg
#HA Proxy Config
global
ulimit-n 500000
maxconn 99999
maxpipes 99999
tune.maxaccept 500
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
ssl-default-bind-options no-sslv3
defaults
log global
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
timeout tunnel 1h # timeout to use with WebSocket and CONNECT
default-server init-addr none
listen stats
bind *:9999
stats enable
stats hide-version
stats uri /stats
stats auth admin:admin@123
frontend http-in
bind *:80
option forwardfor
reqadd X-Forwarded-Proto: \ http
acl letsencrypt_http_acl path_beg /.well-known/acme-challenge/
redirect scheme https if !letsencrypt_http_acl { env(FORCE_HTTPS_REDIRECT) -m str true }
use_backend letsencrypt_http if letsencrypt_http_acl
default_backend tb-backend
frontend https_in
bind *:443 ssl crt /usr/share/tb-haproxy/default.pem crt /usr/share/tb-haproxy/certs.d/ ciphers ECDHE-RSA-AES256-SHA:RC4-SHA:RC4:HIGH:!MD5:!aNULL:!EDH:!AESGCM
option forwardfor
reqadd X-Forwarded-Proto: \ https
default_backend tb-backend
backend letsencrypt_http
server letsencrypt_http_srv 127.0.0.1:8090
backend tb-backend
balance leastconn
option tcp-check
option log-health-checks
server tb1 127.0.0.1:8080 check inter 5s
http-request set-header X-Forwarded-Port %[dst_port]
EOT
Execute the following commands to create Certbot with Let’s Encrypt configuration and helper files:
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$ sudo mkdir -p /usr/local/etc/letsencrypt \
&& sudo mkdir -p /usr/share/tb-haproxy/letsencrypt \
&& sudo rm -rf /etc/letsencrypt \
&& sudo ln -s /usr/share/tb-haproxy/letsencrypt /etc/letsencrypt
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$ cat << EOT | sudo tee /usr/local/etc/letsencrypt/cli.ini
authenticator = standalone
agree-tos = True
http-01-port = 8090
tls-sni-01-port = 8443
non-interactive = True
preferred-challenges = http-01
EOT
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$ cat << EOT | sudo tee /usr/bin/haproxy-refresh
#!/bin/sh
HA_PROXY_DIR=/usr/share/tb-haproxy
LE_DIR=/usr/share/tb-haproxy/letsencrypt/live
DOMAINS= \$ (ls \$ {LE_DIR})
# update certs for HA Proxy
for DOMAIN in \$ {DOMAINS}
do
cat \$ {LE_DIR}/ \$ {DOMAIN}/fullchain.pem \$ {LE_DIR}/ \$ {DOMAIN}/privkey.pem > \$ {HA_PROXY_DIR}/certs.d/ \$ {DOMAIN}.pem
done
# restart haproxy
exec service haproxy restart
EOT
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$ cat << EOT | sudo tee /usr/bin/certbot-certonly
#!/bin/sh
/usr/bin/certbot certonly -c /usr/local/etc/letsencrypt/cli.ini " \$ @"
EOT
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$ cat << EOT | sudo tee /usr/bin/certbot-renew
#!/bin/sh
/usr/bin/certbot -c /usr/local/etc/letsencrypt/cli.ini renew " \$ @"
EOT
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$ sudo chmod +x /usr/bin/haproxy-refresh /usr/bin/certbot-certonly /usr/bin/certbot-renew
Install certificates auto renewal cron job
Execute the following command to create certificates auto renewal cron job:
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$ cat << EOT | sudo tee /etc/cron.d/certbot
# /etc/cron.d/certbot: crontab entries for the certbot package
#
# Upstream recommends attempting renewal twice a day
#
# Eventually, this will be an opportunity to validate certificates
# haven't been revoked, etc. Renewal will only occur if expiration
# is within 30 days.
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
0 */12 * * * root test -x /usr/bin/certbot && perl -e 'sleep int(rand(3600))' && certbot -c /usr/local/etc/letsencrypt/cli.ini -q renew && haproxy-refresh
EOT
Restart HAProxy Load Balancer
Finally restart HAProxy Load Balancer service in order changes take effect:
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$ sudo service haproxy restart
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