Issue #221: Update everything in Django orchestration example to CentOS 8 and Django 3.

Author: geerlingguy

orchestration/Vagrantfile

@@ -5,7 +5,7 @@ VAGRANTFILE_API_VERSION = "2"
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   # General Vagrant VM configuration.
-  config.vm.box = "geerlingguy/centos7"
+  config.vm.box = "geerlingguy/centos8"
   config.ssh.insert_key = false
   config.vm.synced_folder ".", "/vagrant", disabled: true
   config.vm.provider :virtualbox do |v|

orchestration/scripts/app.sh

@@ -4,15 +4,14 @@
 set -e
 
 # Configure Django on app server.
-ansible app -b -m yum -a "name=MySQL-python state=present"
-ansible app -b -m yum -a "name=python-setuptools state=present"
-ansible app -b -m easy_install -a "name=django<2 state=present"
+ansible app -b -m yum -a "name=python3-pip state=present"
+ansible app -b -m pip -a "name=django<4 state=present"
 
 # Check Django version.
-ansible app -a "python -c 'import django; print django.get_version()'"
+ansible app -a "python3 -m django --version"
 
 # Other commands from the book.
-ansible app -b -a "service ntpd status"
+# ansible app -b -a "systemctl status chronyd"
 ansible app -b -m group -a "name=admin state=present"
 ansible app -b -m user -a "name=johndoe group=admin createhome=yes"
 ansible app -b -m user -a "name=johndoe state=absent remove=yes"

orchestration/scripts/db.sh

@@ -6,9 +6,14 @@ set -e
 # Configure MySQL (MariaDB) server.
 ansible db -b -m yum -a "name=mariadb-server state=present"
 ansible db -b -m service -a "name=mariadb state=started enabled=yes"
-ansible db -b -a "iptables -F"
-ansible db -b -a "iptables -A INPUT -s 192.168.60.0/24 -p tcp -m tcp --dport 3306 -j ACCEPT"
+
+# Configure firewalld.
+ansible db -b -m yum -a "name=firewalld state=present"
+ansible db -b -m service -a "name=firewalld state=started enabled=yes"
+ansible db -b -m firewalld -a "zone=database state=present permanent=yes"
+ansible db -b -m firewalld -a "source=192.168.60.0/24 zone=database state=enabled permanent=yes"
+ansible db -b -m firewalld -a "port=3306/tcp zone=database state=enabled permanent=yes"
 
 # Configure DB user for Django.
-ansible db -b -m yum -a "name=MySQL-python state=present"
+ansible db -b -m yum -a "name=python3-PyMySQL state=present"
 ansible db -b -m mysql_user -a "name=django host=% password=12345 priv=*.*:ALL state=present"

orchestration/scripts/multi.sh

@@ -10,5 +10,5 @@ ansible multi -b -m fetch -a "src=/etc/hosts dest=/tmp"
 ansible multi -m file -a "dest=/tmp/test mode=644 state=directory"
 ansible multi -m file -a "dest=/tmp/test state=absent"
 ansible multi -b -B 3600 -P 0 -a "yum -y update"
-ansible multi -b -a "tail /var/log/messages"
-ansible multi -b -m shell -a "tail /var/log/messages | grep ansible-command | wc -l"
+# ansible multi -b -a "tail /var/log/messages"
+# ansible multi -b -m shell -a "tail /var/log/messages | grep ansible-command | wc -l"

tests/orchestration.sh

@@ -14,11 +14,11 @@ sudo pip3 install ansible
 cd orchestration/scripts
 
 # Test Django app installation.
-docker run -d --name app -p 80:80 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro geerlingguy/docker-centos7-ansible
+docker run -d --name app -p 80:80 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro geerlingguy/docker-centos8-ansible
 ./django-app.sh
 
 # Test Django db installation.
-docker run -d --name db -p 3360:3360 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro geerlingguy/docker-centos7-ansible
+docker run -d --name db -p 3360:3360 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro geerlingguy/docker-centos8-ansible
 ./django-db.sh
 
 # Other tests from the book.