Nida

ansible.cfg

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+
+
+[defaults]
+inventory = aws_ec2.yml  # Path to your inventory file
+host_key_checking = False  # Optional: disable host key checking for SSH
+remote_user = ubuntu # Default user for SSH connections
+private_key_file = /home/fateh/Downloads/westkey.pem 
+
+[inventory]
+enable_plugins = aws_ec2

aws_ec2.yml

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+plugin: aws_ec2
+regions:
+  - us-west-1
+filters:
+  "tag:Name": "loki"

loki_role/README.md

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+Role Name
+=========
+
+A brief description of the role goes here.
+
+Requirements
+------------
+
+Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
+
+Role Variables
+--------------
+
+A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as well.
+
+Dependencies
+------------
+
+A list of other roles hosted on Galaxy should go here, plus any details in regards to parameters that may need to be set for other roles, or variables that are used from other roles.
+
+Example Playbook
+----------------
+
+Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
+
+    - hosts: servers
+      roles:
+         - { role: username.rolename, x: 42 }
+
+License
+-------
+
+BSD
+
+Author Information
+------------------
+
+An optional section for the role authors to include contact information, or a website (HTML is not allowed).

loki_role/defaults/main.yml

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+---
+# defaults file for loki_role

loki_role/files/loki-config.yml

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+auth_enabled: false
+
+server:
+  http_listen_port: 3100
+
+ingester:
+  lifecycler:
+    address: 127.0.0.1
+    ring:
+      kvstore:
+        store: inmemory
+      replication_factor: 1
+    final_sleep: 0s
+  chunk_idle_period: 5m
+  chunk_retain_period: 30s
+  max_transfer_retries: 0
+
+schema_config:
+  configs:
+    - from: 2018-04-15
+      store: boltdb
+      object_store: filesystem
+      schema: v11
+      index:
+        prefix: index_
+        period: 168h
+
+storage_config:
+  boltdb:
+    directory: /data/loki/index
+
+  filesystem:
+    directory: /data/loki/chunks
+
+limits_config:
+  enforce_metric_name: false
+  reject_old_samples: true
+  reject_old_samples_max_age: 168h
+
+chunk_store_config:
+  max_look_back_period: 0s
+
+table_manager:
+  retention_deletes_enabled: false
+  retention_period: 0s

loki_role/files/loki-service

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+[Unit]
+Description=Loki service
+After=network.target
+
+[Service]
+Type=simple
+User=root
+Restart=on-failure
+ExecStart=/usr/local/bin/loki -config.file /etc/loki/loki-local-config.yaml
+
+[Install]
+WantedBy=multi-user.target

loki_role/files/prom-config.yml

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+server:
+  http_listen_port: 9080
+  grpc_listen_port: 0
+
+positions:
+  filename: /data/loki/positions.yaml
+
+clients:
+  - url: http://localhost:3100/loki/api/v1/push
+
+scrape_configs:
+  - job_name: system
+    static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: varlogs
+          __path__: /var/log/*log

loki_role/files/promtail-service

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+[Unit]
+Description=Promtail service
+After=network.target
+
+[Service]
+Type=simple
+User=root
+ExecStart=/usr/local/bin/promtail -config.file /etc/promtail-local-config.yaml
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target

loki_role/handlers/main.yml

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+---
+# handlers file for loki_rol
+- name: Restart loki
+  ansible.builtin.service:
+    name: loki
+    state: started
+    enabled: true
+
+- name: starting grafana
+  ansible.builtin.systemd:
+    name: grafana-server
+    state: started
+    enabled: true
+
+- name: start promtail
+  ansible.builtin.systemd:
+    name: promtail
+    state: started
+    enabled: true
+
+

loki_role/meta/main.yml

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+# galaxy_info:
+#   author: your name
+#   description: your role description
+#   company: your company (optional)
+
+  # If the issue tracker for your role is not on github, uncomment the
+  # next line and provide a value
+  # issue_tracker_url: http://example.com/issue/tracker
+
+  # Choose a valid license ID from https://spdx.org - some suggested licenses:
+  # - BSD-3-Clause (default)
+  # - MIT
+  # - GPL-2.0-or-later
+  # - GPL-3.0-only
+  # - Apache-2.0
+  # - CC-BY-4.0
+  # license: license (GPL-2.0-or-later, MIT, etc)
+
+  #min_ansible_version: 2.1
+
+  # If this a Container Enabled role, provide the minimum Ansible Container version.
+  # min_ansible_container_version:
+
+  #
+  # Provide a list of supported platforms, and for each platform a list of versions.
+  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
+  # To view available platforms and versions (or releases), visit:
+  # https://galaxy.ansible.com/api/v1/platforms/
+  #
+  # platforms:
+  # - name: Fedora
+  #   versions:
+  #   - all
+  #   - 25
+  # - name: SomePlatform
+  #   versions:
+  #   - all
+  #   - 1.0
+#   #   - 7
+#   #   - 99.99
+
+#   galaxy_tags: []
+#     # List tags for your role here, one per line. A tag is a keyword that describes
+#     # and categorizes the role. Users find roles by searching for tags. Be sure to
+#     # remove the '[]' above, if you add tags to this list.
+#     #
+#     # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
+#     #       Maximum 20 tags per role.
+
+# dependencies: []
+#   # List your role dependencies here, one per line. Be sure to remove the '[]' above,
+#   # if you add dependencies to this list.

loki_role/tasks/grafana.yaml

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+---
+- name: Install prerequisite packages on Debian-based systems
+  ansible.builtin.apt:
+    name:
+      - gnupg
+      - curl
+    state: present
+  when: ansible_facts['os_family'] == 'Debian'
+
+- name: Add Grafana GPG key on Debian-based systems
+  ansible.builtin.apt_key:
+    url: https://packages.grafana.com/gpg.key
+    state: present
+  when: ansible_facts['os_family'] == 'Debian'
+
+- name: Add Grafana repository on Debian-based systems
+  ansible.builtin.apt_repository:
+    repo: "deb https://packages.grafana.com/oss/deb stable main"
+    state: present
+  when: ansible_facts['os_family'] == 'Debian'
+
+- name: Update apt package repository on Debian-based systems
+  ansible.builtin.apt:
+    update_cache: yes
+  when: ansible_facts['os_family'] == 'Debian'
+
+- name: Install Grafana on Debian-based systems
+  ansible.builtin.apt:
+    name: grafana
+    state: present
+  when: ansible_facts['os_family'] == 'Debian'
+  notify: starting grafana
+
+- name: Install prerequisite packages on Red Hat-based systems
+  ansible.builtin.yum:
+    name:
+      - gnupg
+      - curl
+    state: present
+  when: ansible_facts['os_family'] == 'RedHat'
+
+- name: Add Grafana GPG key on Red Hat-based systems
+  ansible.builtin.rpm_key:
+    state: present
+    key: https://packages.grafana.com/gpg.key
+  when: ansible_facts['os_family'] == 'RedHat'
+
+- name: Add Grafana repository on Red Hat-based systems
+  ansible.builtin.yum_repository:
+    name: grafana
+    description: Grafana OSS Repository
+    baseurl: https://packages.grafana.com/oss/rpm
+    gpgcheck: 1
+    gpgkey: https://packages.grafana.com/gpg.key
+    enabled: 1
+  when: ansible_facts['os_family'] == 'RedHat'
+
+- name: Install Grafana on Red Hat-based systems
+  ansible.builtin.yum:
+    name: grafana
+    state: present
+  when: ansible_facts['os_family'] == 'RedHat'
+  notify: starting grafana

loki_role/tasks/loki.yaml

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+---
+- name: updating cache of ubuntu
+  ansible.builtin.apt:
+    update_cache: yes
+
+- name: Install unzip, bzip2, xz-utils, and zstd
+  ansible.builtin.apt:
+    name:
+      - unzip
+      - bzip2
+      - xz-utils
+      - zstd
+    state: present
+
+- name: Download Binaries for loki
+  ansible.builtin.get_url:
+    url: "https://github.com/grafana/loki/releases/download/v{{ loki_version }}/loki-linux-amd64.zip"
+    dest: /home/ubuntu/
+    mode: '755'
+
+- name: Unarchive a file 
+  ansible.builtin.unarchive:
+    src: "/home/ubuntu/loki-linux-amd64.zip"
+    dest: /home/ubuntu/
+    remote_src: yes
+
+
+- name: Add the user 'loki'
+  ansible.builtin.user:
+    name: loki
+    state: present
+    system: true
+
+- name: Copy file with owner and permissions
+  ansible.builtin.copy:
+    src: /home/ubuntu/loki-linux-amd64 
+    dest: /usr/local/bin/loki
+    owner: loki
+    group: loki
+    mode: '755'
+    remote_src: true
+
+
+- name: Creating directory for config file
+  ansible.builtin.file:
+    path: "{{ item }}" 
+    state: directory
+    owner: loki
+    group: loki
+    mode: '755'
+    recurse: true
+  loop: 
+    - /etc/loki/logs
+    - /data/loki
+
+- name: Creating Config file
+  ansible.builtin.file:
+    path: /etc/loki/loki-local-config.yaml 
+    state: touch
+
+
+- name: Copying the config file content
+  ansible.builtin.template:
+    src: templates/loki-config.j2
+    dest: /etc/loki/loki-local-config.yaml
+
+- name: Creating service file
+  ansible.builtin.file:
+    path: /etc/systemd/system/loki.service
+    state: touch
+
+- name: Reload systemd manager configuration
+  ansible.builtin.systemd:
+    daemon_reload: true
+
+- name: Copying the system file content
+  ansible.builtin.copy:
+    src: files/loki-service
+    dest: /etc/systemd/system/loki.service
+  notify: Restart loki
+

loki_role/tasks/main.yaml

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+---
+
+
+ - name: Include grafana tasks
+   ansible.builtin.include_tasks:
+    file: grafana.yaml
+   when: run_grafana_tasks
+
+ - name: Include Loki tasks
+   ansible.builtin.include_tasks:
+    file: loki.yaml
+   when: run_loki_tasks
+
+
+ - name: Include promtail tasks
+   ansible.builtin.include_tasks:
+    file: promtail.yml
+   when: run_promtail_tasks
+
+