pygps
- Read Serial interface and grab data from the GPS receiver
- Calculate distance and speed between two successive reads
- Publish the data to a MQ (AMQP)
pygps-consumer
- Read the message published to MQ (AMQP)
- Enrich the message with context data
- POST the data to a remote API endpoint
Raspberry Pi Zero W
GSM/GPRS/GNSS/Bluetooth HAT for Raspberry Pi, Based on SIM868
Huawei E3372
cat /etc/issue.net
Raspbian GNU/Linux 9
All the files are installed in /home/[SCRIPT]/pygps
PYGPS will run as user [SCRIPT]
cd endpointpublis/certificates
token=$(curl --key clientA-key.pem --cert clientA-crt.pem --cacert ca-crt.pem https://[JWT API ENDPOINT]/get/jwt/ -H 'x-ip-address: xxx' -H 'Content-Type: application/json' | jq -r '.token'); curl -X POST -i https://[API GW]/track/items/ -H "Authorization: Bearer ${token}" -H "X-DEBUG: true" -H 'x-ip-address: xxx'
Packages: python3 (3.7.x), pip3, pip-tools, systemd, git, rabbitmq-server, memcached
As user root
cd /home/[SCRIPT]/pygps
export LC_ALL=C.UTF-8
export LANG=C.UTF-8
pip-compile requirements.in -o requirements.txt
pip3 install -r requirements.txt
cd /etc/systemd/system/
pygps.service
[Unit]
Description=Python GPS Service
After=network.target memcached.service rabbitmq-server.service
[Service]
User=[SCRIPT]
Group=[SCRIPT]
Type=simple
ExecStart=/usr/bin/python3 /home/[SCRIPT]/pygps/pygps.py
Restart=always
RestartSec=3
StandardOutput=journal
StandardError=journal
[Install]
WantedBy=multi-user.target
Alias=pygps.service
pygps-consumer.service
[Unit]
Description=Python GPS consumer Service
After=network.target pygps.service
[Service]
User=[SCRIPT]
Group=[SCRIPT]
Type=simple
ExecStart=/usr/bin/python3 /home/[SCRIPT]/pygps/pygps-consumer.py
Restart=always
RestartSec=3
StandardOutput=journal
StandardError=journal
[Install]
WantedBy=multi-user.target
Alias=pygps-consumer.service
pygps-ipaddress.service
[Unit]
Description=Python GPS Service IP Req
After=network.target
[Service]
User=ipirva
Group=ipirva
Type=oneshot
RemainAfterExit=true
ExecStart=/usr/local/bin/python3.7 /home/[SCRIPT]/pygps/cron/getipaddress.py
StandardOutput=journal
StandardError=journal
[Install]
WantedBy=multi-user.target
Alias=pygps-ipaddress.service
systemctl daemon-reload
systemctl enable pygps.service
systemctl enable pygps-consumer.service
systemctl enable pygps-ipaddress.service
systemctl start pygps.service
systemctl start pygps-consumer.service
systemctl start pygps-ipaddress.service
journalctl -u pygps.service
journalctl -u pygps-consumer.service
journalctl -u pygps-ipaddress.service
Log rotate
cd /etc/logrotate.d/
pygps
/home/[SCRIPT]/pygps/logs/pygps-consumer.log
/home/[SCRIPT]/pygps/logs/pygps.log
/home/[SCRIPT]/pygps/cron/logs/getipaddress.log
{
rotate 30
maxsize 50M
notifempty
missingok
nocreate
daily
compress
delaycompress
}
As user [SCRIPT]
crontab -l
*/10 * * * * python3 /home/[SCRIPT]/pygps/cron/getipaddress.py
Change file access rights for the certificate files.
cd /home/[SCRIPT]/pygps/endpointpublish/certificates
chmod go-r *.pem
As root:
apt-get install memcached
update-rc.d memcached defaults
Configuration: /etc/memcached.conf
-d
logfile /var/log/memcached.log
-m 64
-p 21201
-u memcache
-l 127.0.0.1
service memcached start
As root:
apt-get install rabbitmq-server -y
mkdir -p /etc/rabbitmq/
echo "[rabbitmq_management]." > /etc/rabbitmq/enabled_plugins
update-rc.d rabbitmq-server defaults
service rabbitmq-server start
{
"rabbit_version": "3.6.15",
"users": [
{
"name": "admin",
"password_hash": "cArRhHjba55meGIPRP7xZJdfvQ0Je1hqvbUWtqbwLezcnC41",
"hashing_algorithm": "rabbit_password_hashing_sha256",
"tags": "administrator"
},
{
"name": "pygps",
"password_hash": "YtZBOA1fvv8KAKhQNdCQvqu7fNk5no/bZIgeB2OkkAgP3aMi",
"hashing_algorithm": "rabbit_password_hashing_sha256",
"tags": ""
}
],
"vhosts": [
{
"name": "/"
}
],
"permissions": [
{
"user": "pygps",
"vhost": "/",
"configure": ".*",
"write": ".*",
"read": ".*"
},
{
"user": "admin",
"vhost": "/",
"configure": ".*",
"write": ".*",
"read": ".*"
}
],
"parameters": [],
"global_parameters": [
{
"name": "cluster_name",
"value": "rabbit@raspberrypi"
}
],
"policies": [],
"queues": [
{
"name": "GPSDetails",
"vhost": "/",
"durable": true,
"auto_delete": false,
"arguments": {
"x-message-ttl": 432000000
}
}
],
"exchanges": [],
"bindings": []
}
As a non-root user:
cat /etc/issue.net
Raspbian GNU/Linux 9
pythonversion="3.7.5"
pythonversionmajor="3.7"
As root user:
apt-get install build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev libffi-dev -y
As a non-root user:
cd /tmp
wget https://www.python.org/ftp/python/${pythonversion}/Python-${pythonversion}.tar.xz
tar xf Python-${pythonversion}.tar.xz
cd Python-${pythonversion}
./configure
make -j 4
As root user:
make altinstall
for root and the user script pygps
As the respective user:
sed -i '/alias python3/d' ~/.bashrc
echo "alias python3=python${pythonversionmajor}" >> ~/.bashrc
source ~/.bashrc
cd /tmp
curl -O https://bootstrap.pypa.io/get-pip.py
As root user:
python3 get-pip.py
for root and the user script pygps
As the respective user:
sed -i '/alias pip3/d' ~/.bashrc
echo "alias pip3=pip${pythonversionmajor}" >> ~/.bashrc
source ~/.bashrc
As root user:
cd /tmp
rm -fr Python-${pythonversion}
rm Python-${pythonversion}.tar.xz
apt-get --purge remove build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev libffi-dev -y
apt-get autoremove -y
apt-get clean
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent