Download a file using an HTTPS proxy via environment variables - Ansible get_url and environment

How to automate the download of a file and verify the checksum using an HTTPS proxy with Ansible module get_url and "https_proxy" environment statement.

February 21, 2022

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#ansible #environment #statement #linux #variables #proxy #https

How to download a file using an HTTPS proxy via environment variables with Ansible?

I’m going to show you a live demo with some simple Ansible code. I’m Luca Berton and welcome to today’s episode of Ansible Pilot.

Download a file using an https proxy via env variables

get_url module
http_proxy and https_proxy environment

The easiest way to download a file using an HTTPS proxy is via the get_url Ansible module and the environment variables. You could set the remote proxy via the http_proxy and https_proxy remote environment using the Ansible statement environment. This applies respectively to HTTP and HTTPS connections. The Ansible environment statement could be applied at the task level or play level.

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demo

Download a file using an HTTPS proxy via environment variables with Ansible Playbook. The following scenario uses the HTTPS proxy server http://proxy.example.com:3128.

code

---
- name: get_url module with proxy demo
  hosts: all
  become: false
  gather_facts: false
  vars:
    myurl: "https://releases.ansible.com/ansible/ansible-2.9.25.tar.gz"
    mycrc: "sha256:https://releases.ansible.com/ansible/ansible-2.9.25.tar.gz.sha"
    mydest: "/home/devops/ansible-2.9.25.tar.gz"
  tasks:
    - name: download file with proxy
      ansible.builtin.get_url:
        url: "{{ myurl }}"
        dest: "{{ mydest }}"
        checksum: "{{ mycrc }}"
        mode: '0644'
        owner: devops
        group: wheel
      environment:
        https_proxy: "http://proxy.example.com:3128"

execution

ansible-pilot $ ansible-playbook -i virtualmachines/demo/inventory download\ file/get_url_with_proxy.yml
PLAY [get_url module with proxy demo] *************************************************************
TASK [download file with proxy] *******************************************************************
changed: [demo.example.com]
PLAY RECAP ****************************************************************************************
demo.example.com           : ok=1    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
ansible-pilot $

idempotency

ansible-pilot $ ansible-playbook -i virtualmachines/demo/inventory download\ file/get_url_with_proxy.yml
PLAY [get_url module with proxy demo] *************************************************************
TASK [download file with proxy] *******************************************************************
ok: [demo.example.com]
PLAY RECAP ****************************************************************************************
demo.example.com           : ok=1    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
ansible-pilot $

before execution

ansible-pilot $ ssh [email protected]
Last login: Mon Feb 21 14:34:39 2022 from 192.168.251.111
[devops@demo ~]$ ls -al
total 16
drwx------. 4 devops wheel 111 Feb 21 14:29 .
drwxr-xr-x. 4 root   root   35 Jan  5 10:18 ..
drwx------. 3 devops wheel  17 Jan  5 10:22 .ansible
-rw-------. 1 devops wheel 560 Feb 21 14:33 .bash_history
-rw-r--r--. 1 devops wheel  18 Jul 26  2021 .bash_logout
-rw-r--r--. 1 devops wheel 141 Jul 26  2021 .bash_profile
-rw-r--r--. 1 devops wheel 376 Jul 26  2021 .bashrc
drwx------. 2 devops wheel  29 Jan  5 10:18 .ssh
[devops@demo ~]$

after execution

ansible-pilot $ ssh [email protected]
Last login: Mon Feb 21 14:36:10 2022 from 192.168.251.111
[devops@demo ~]$ ls -al
total 13964
drwx------. 4 devops wheel      140 Feb 21 14:36 .
drwxr-xr-x. 4 root   root        35 Jan  5 10:18 ..
drwx------. 3 devops wheel       17 Jan  5 10:22 .ansible
-rw-------. 1 devops wheel      572 Feb 21 14:35 .bash_history
-rw-r--r--. 1 devops wheel       18 Jul 26  2021 .bash_logout
-rw-r--r--. 1 devops wheel      141 Jul 26  2021 .bash_profile
-rw-r--r--. 1 devops wheel      376 Jul 26  2021 .bashrc
drwx------. 2 devops wheel       29 Jan  5 10:18 .ssh
-rw-r--r--. 1 devops wheel 14280306 Feb 21 14:36 ansible-2.9.25.tar.gz
[devops@demo ~]$

ansible-pilot $ ssh [email protected]
[devops@proxy ~]$ sudo su
[root@proxy devops]# cat /var/log/squid/access.log
1645453749.115    598 192.168.251.205 TCP_TUNNEL/200 3952 CONNECT releases.ansible.com:443 - HIER_DIRECT/104.26.1.234 -
1645453770.840    412 192.168.251.205 TCP_TUNNEL/200 3955 CONNECT releases.ansible.com:443 - HIER_DIRECT/104.26.1.234 -
1645453779.292   8442 192.168.251.205 TCP_TUNNEL/200 14304919 CONNECT releases.ansible.com:443 - HIER_DIRECT/104.26.1.234 -
1645454103.403    135 192.168.251.205 TCP_TUNNEL/200 39 CONNECT releases.ansible.com:443 - HIER_DIRECT/104.26.0.234 -
1645454157.121    501 192.168.251.205 TCP_TUNNEL/200 3957 CONNECT releases.ansible.com:443 - HIER_DIRECT/104.26.1.234 -
1645454163.543   6413 192.168.251.205 TCP_TUNNEL/200 14304902 CONNECT releases.ansible.com:443 - HIER_DIRECT/104.26.1.234 -
1645454171.680    497 192.168.251.205 TCP_TUNNEL/200 3948 CONNECT releases.ansible.com:443 - HIER_DIRECT/104.26.1.234 -
[root@proxy devops]#

code with ❤️ in GitHub

Recap

Now you know how to use HTTPS proxy using environment variables with Ansible Playbook. Subscribe to the YouTube channel, Medium, Website, Twitter, and Substack to not miss the next episode of the Ansible Pilot.