diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
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+# Contributing Guidelines
+
+:confetti_ball::medal_military: First of all, thank you for contributing! :medal_military::confetti_ball:
+
+## Issue
+
+- Search for an already opened [issue](https://github.com/ReasonSoftware/ssh-manager/issues) before submitting a [new one](https://github.com/ReasonSoftware/ssh-manager/issues/new/choose).
+- Provide as much information as you can.
+
+## Pull Request
+
+- Ensure [Pull Request](https://github.com/ReasonSoftware/ssh-manager/pulls) description clearly describes the problem and solution.
+- Make sure all Tests are passed and there is no Code Coverage degradation.
+- Add more tests wherever possible.
+- Please follow [AngularJS Commit Message Guidelines](https://github.com/angular/angular/blob/master/CONTRIBUTING.md#-commit-message-guidelines)
diff --git a/.github/ISSUE_TEMPLATE/report_a_bug.md b/.github/ISSUE_TEMPLATE/report_a_bug.md
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+---
+name: Report a Bug
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: anton-yurchenko
+
+---
+
+### Description
+
+A clear and concise description of what the bug is
+
+### Version
+
+`Provide an Application Version`
+
+*First log message contains the version number...*
+
+### Log
+
+```Attach an execution log```
+
+*In case your security policy does not allow you to provide usernames, you may replace them with something like `user-1`/`user-2`.*
+
+#### Sanitized Central Configuration
+
+:warning: **Obfuscate real information** :warning:
+
+Clich Here to Expand
+
+```json
+{
+ "users": {
+ "user.1": "AAA",
+ "user.2": "BBB",
+ "user.3": "CCC",
+ "user.4": "DDD",
+ "user.5": "EEE",
+ "user.6": "FFF"
+ },
+ "server_groups": {
+ "backend": {
+ "sudoers": [
+ "user.2"
+ ],
+ "users": [
+ "user.1",
+ "user.4",
+ "user.5"
+ ]
+ },
+ "poc": {
+ "sudoers": [
+ "user.1",
+ "user.2",
+ "user.4"
+ ],
+ "users": [
+ "user.6"
+ ]
+ },
+ "devops": {
+ "sudoers": [
+ "user.2"
+ ],
+ "users": [
+ "user.3",
+ "user.5"
+ ]
+ }
+ }
+}
+```
+
+Clich Here to Expand
+
+```yaml
+secret_name: XXX
+groups:
+ - A
+ - B
+ - C
+```
+
+Clich Here to Expand
+
+```json
+{
+ "users": {
+ "user.1": "ssh-rsa AAA...",
+ "user.2": "ssh-rsa AAA...",
+ "user.3": "ssh-rsa AAA...",
+ "user.4": "ssh-rsa AAA...",
+ "user.5": "ssh-rsa AAA...",
+ "user.6": "ssh-rsa AAA..."
+ },
+ "server_groups": {
+ "backend": {
+ "sudoers": [
+ "user.2"
+ ],
+ "users": [
+ "user.1",
+ "user.4",
+ "user.5"
+ ]
+ },
+ "poc": {
+ "sudoers": [
+ "user.1",
+ "user.2",
+ "user.4"
+ ],
+ "users": [
+ "user.6"
+ ]
+ },
+ "devops": {
+ "sudoers": [
+ "user.2"
+ ],
+ "users": [
+ "user.3",
+ "user.5"
+ ]
+ }
+ }
+}
+```
+
+Clich Here to Expand
+
+```yaml
+secret_name: ssh-manager
+groups:
+ - devops
+```
+
+:information_source: AWS Secret Structure
+
+```json
+{
+ "users": {
+ "user.1": "ssh-rsa AAA...",
+ "user.2": "ssh-rsa AAA...",
+ "user.3": "ssh-rsa AAA...",
+ "user.4": "ssh-rsa AAA...",
+ "user.5": "ssh-rsa AAA...",
+ "user.6": "ssh-rsa AAA..."
+ },
+ "server_groups": {
+ "backend": {
+ "sudoers": [
+ "user.2"
+ ],
+ "users": [
+ "user.1",
+ "user.4",
+ "user.5"
+ ]
+ },
+ "poc": {
+ "sudoers": [
+ "user.1",
+ "user.2",
+ "user.4"
+ ],
+ "users": [
+ "user.6"
+ ]
+ },
+ "devops": {
+ "sudoers": [
+ "user.2"
+ ],
+ "users": [
+ "user.3",
+ "user.5"
+ ]
+ }
+ }
+}
+```
+
+:information_source: AWS IAM Policy
+
+```json
+{
+ "Version": "2012-10-17",
+ "Statement": [
+ {
+ "Effect": "Allow",
+ "Action": "secretsmanager:GetSecretValue",
+ "Resource": "arn:aws:secretsmanager:*:*:secret:"
+ }
+ ]
+}
+```
+
+:information_source: Manual Installation
+
+- Create an application directory: `mkdir -p /var/lib/ssh-manager`
+- Download latest [release](https://github.com/ReasonSoftware/ssh-manager/releases/latest) unzip to `/var/lib/ssh-manager`
+- Create **systemd** service under `/etc/systemd/system/ssh-manager.service` with the following content:
+
+```
+[Unit]
+Description=Central SSH Management Service for AWS Linux EC2
+Wants=network-online.target
+After=network-online.target
+
+[Service]
+Type=oneshot
+ExecStart=/var/lib/ssh-manager/ssh-manager
+StandardOutput=journal
+User=root
+
+[Install]
+WantedBy=multi-user.target
+```
+
+- Create **systemd** timer under `/etc/systemd/system/ssh-manager.timer` with the following content:
+
+```
+[Unit]
+Description=Timer for Central SSH Management Service
+Wants=network-online.target
+After=network-online.target
+
+[Timer]
+Unit=ssh-manager.service
+OnBootSec=10min
+OnUnitInactiveSec=60min
+Persistent=true
+
+[Install]
+WantedBy=multi-user.target
+```
+
+- Reload **systemd** configuration: `systemctl daemon-reload`
+- Enable **ssh-manager** service: `systemctl enable ssh-manager.service`
+- Enable and start **ssh-manager** timer: `systemctl enable --now ssh-manager.timer`
+
+:information_source: Update
+
+- Download latest [release](https://github.com/ReasonSoftware/ssh-manager/releases/latest) and replace `/var/lib/ssh-manager/ssh-manager` file
+
+:information_source: Uninstall
+
+Decide what are you going to do with the users and either delete them (`userdel -r `) or change their primary group to some other group (`usermod -G `)
+
+- Delete systemd service and timer:
+
+```shell
+systemctl stop ssh-manager.service
+systemctl stop ssh-manager.timer
+rm -f /etc/systemd/system/ssh-manager.*
+```
+
+- Delete application groups:
+
+```shell
+groupdel ssh-manager-users
+groupdel ssh-manager-sudoers
+```
+
+- Remove `%ssh-manager-sudoers ALL=(ALL) NOPASSWD: ALL` entry from `/etc/sudoers` file
+- Delete app directory `rm -rf /var/lib/ssh-manager`
+- Delete local configuration file `rm -f /root/ssh-manager.yml`
+
+Click Here to Expand
+
+
+
+Click Here to Expand
+
+
+
+Click Here to Expand
+
+
+
+Click Here to Expand
+
+
+
+Click Here to Expand
+
+
+
+Click Here to Expand
+
+
+
+