Automate ABAP for HANA deployment using Ansible

[shankar_gomare]

In this article you will learn to deploy multiple A4H containers using Ansible.



Ansible is an open-source software provisioning, configuration management, and application-deployment tool enabling infrastructure as code.

An Ansible playbook is a blueprint of automation tasks—which are complex IT actions executed with limited or no human involvement. Ansible playbooks are executed on a set, group, or classification of hosts, which together make up an Ansible inventory.

The following is our Ansible playbook which will install Docker-CE and ABAP Trial 1909 in just one command.

This playbook is also available on my GitHub repo here to clone. I highly recommend to clone GitHub repo instead copy pest.

---

- name: Deploy ABAP 1909

  hosts: 127.0.0.1

  remote_user: root

  become: 'yes'

  become_method: sudo  

  vars:

    DOCKER_PACKAGES:

      - apt-transport-https

      - ca-certificates

      - curl

      - gnupg-agent

      - software-properties-common



  tasks:

  - name: Update apt packages

    apt:

      update_cache: "yes"

      force_apt_get: "yes"



  - name: Run whoami without become.

    command: whoami

    changed_when: false

    become: false

    register: whoami



  - name: Install packages needed for Docker

    apt:

      name: "{{ DOCKER_PACKAGES }}"

      state: present

      force_apt_get: "yes"



  - name : Find distro

    shell: "echo $(awk '/^ID=/' /etc/*-release | sed 's/ID=//' | tr '[:upper:]' '[:lower:]')"

    register: dist



  - name: Add Docker GPG apt Key

    apt_key:

      url: https://download.docker.com/linux/{{dist.stdout}}/gpg

      state: present



  - name: Save the current Ubuntu release version into a variable

    shell: lsb_release -cs

    register: dist_version



  - name: Add Docker Repository

    apt_repository:

      repo: "deb [arch=amd64] https://download.docker.com/linux/{{dist.stdout}} {{ dist_version.stdout }} stable"

      state: present



  - name: Update apt packages

    apt:

      update_cache: "yes"

      force_apt_get: "yes"



  - name: Install Docker

    apt:

      name: "docker-ce"

      state: present

      force_apt_get: "yes"



  - name: Test Docker with hello world example

    shell: "docker run hello-world"

    ignore_errors: yes

    register: hello_world_output



  - name: Show output of hello word example

    debug:

      msg: "Container Output: {{hello_world_output.stdout}}"



  - name: Create docker group

    group:

      name: "docker"

      state: present



  - name: Adding user {{ whoami.stdout }} to docker group  

    user:

      name: "{{ whoami.stdout }}"

      groups: "docker"

      append: "yes"



  - name: Log into Dockerhub

    shell: "docker login -u {{ docker_user }} -p {{ docker_password }}"

    register: docker_login_output



  - name: Show output of dockerLogin

    debug:

      msg: "Docker Login: {{docker_login_output.stdout}}"



  - name : Verify existing container

    shell: "docker ps -aqf \"name=a4h\""

    register: valid



  - name: Output container IDs

    debug:

      msg: "Container IDs: {{valid}}"



  - name: Deploy Developer Editon 1909

    shell: >

      docker run

      --stop-timeout 3600

      --sysctl kernel.shmmax=21474836480 

      --sysctl kernel.shmmni=32768 

      --sysctl kernel.shmall=5242880 

      --sysctl kernel.msgmni=1024 

      --sysctl kernel.sem="1250 256000 100 8192" 

      --ulimit nofile=1048576:1048576

      -di --name a4h -h vhcala4hci

      -p 3200:3200 

      -p 3300:3300 

      -p 8443:8443 

      -p 30213:30213 

      -p 50000:50000 

      -p 50001:50001 store/saplabs/abaptrial:1909

      -agree-to-sap-license

    register: deploy_ABAP

    when: valid.stdout == ""



  - name: Show output of 1909 deploy

    debug:

      msg: "Container Output: {{deploy_ABAP}}"

    when: valid.stdout == ""



  - name: Start existing container

    shell: "docker start a4h"

    when: valid.stdout != ""

The following command installs Ansible in Debian based Linux distros.

sudo apt install ansible -y

 

We need to get playbook either from GitHub or copy pest from above code section.

# Get Ansible Playbook from GitHub

git clone https://github.com/sgomare/sapnetweaverabaptrial1909.git



# Change directory 

cd sapnetweaverabaptrial1909/

Next, replace "hubuser" and "hubpassword" for Docker Hub account in the below command before running Ansible playbook.

# Runs in background, disconnection from remote system does not stop installation process 

# Recommended for remote systems

nohup ansible-playbook deployABAP1909.yml --extra-vars "docker_user=hubuser docker_password=hubpassword" &



# Runs in forground, disconnection from remote system will kill processs 

# Recommanded for local systems

ansible-playbook deployABAP1909.yml --extra-vars "docker_user=hubuser docker_password=hubpassword"

That's it, at the end of execution you will see a summary of completed tasks, this command also deploys ABAP Trial 1909 container(container name a4h).

PLAY RECAP *********************************************************************

127.0.0.1                  : ok=22   changed=9    unreachable=0    failed=0   

To access container deployment log docker logs command can be used as follows.

The docker log will not be available for docker image pull, which takes most of the time in the overall process.

docker logs a4h --follow

The following two commands can be used to stop and start a4h container on demand.

docker stop a4h

docker start a4h

 

If you prefer manual step by step installation, here is my blog for Ubuntu:

https://blogs.sap.com/2021/03/01/sap-abap-platform-1909-developer-edition-on-ubuntu/

 

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