jbutko

Unregister runnning runner

UI way:

1. Delete runner from UI dashboard:

• open: https://gitlab.com/gallico/crypto-bot-server/-/settings/ci_cd
• click on "Runners" section
• click "Remove runner" button in "Available specific runners" section

2. run sudo gitlab-runner verify --delete command, dead runners will be deleted

Bash way:

1. SSH to your server

jbutko

1. install deps: yarn add -D husky lint-staged is-ci
2. configure husky pre-commit hook:

npm set-script prepare "husky install"
npm run prepare
npx husky add .husky/pre-commit "npm run pre-commit"

3. edit npm prepare script: "prepare": "is-ci || husky install"
4. add pre-commit script to package.json scripts section:

jbutko

To upgrade mongodb (even on replica member) from 4.2 to 4.4:

1. ensure proper feature compatibility version:

sudo mongo
db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } ) -> should return current version (4.2), if not set it:
db.adminCommand( { setFeatureCompatibilityVersion: "4.2" } ) -> set the version to currently installed version

2. backup mongodb.conf file: sudo cp /etc/mongod.conf ~/mongod.conf.bak
3. shutdown mongo service: sudo service mongod stop
4. delete mongodb installation: sudo apt-get -y purge mongodb-org* (the data stays intact)

jbutko

1. Generate ssh key ssh-keygen -f ~/.ssh/project_x_id_rsa -t rsa -b 4096 -C "{email}"

2. Add public key to "deploy keys" in github

• Add public key to "deploy keys" section in your project's Setting menu: https://github.com/user/project-x/settings/keys

3. Verify connection: sudo ssh -T git@github.com

4. Edit ssh config file:

jbutko

1. https://docs.github.com/en/actions/hosting-your-own-runners/adding-self-hosted-runners
2. run as service: https://docs.github.com/en/actions/hosting-your-own-runners/configuring-the-self-hosted-runner-application-as-a-service

jbutko

# Resize Swap to 8GB
# Turn swap off
# This moves stuff in swap to the main memory and might take several minutes
sudo swapoff -a
# if it won't work issue: 
# sudo /sbin/swapoff

# Create an empty swapfile
# Note that "1G" is basically just the unit and count is an integer.
# Together, they define the size. In this case 8GB.

jbutko

Setup s3cmd to upload to digitalocean spaces

Generate new spaces API keys

https://cloud.digitalocean.com/account/api/tokens

Install s3cmd

sudo apt-get install s3cmd

Configure s3cmd to use digitaocean spaces

https://docs.digitalocean.com/products/spaces/resources/s3cmd/

jbutko

see last 1000 mongodb replica logs

sudo tail /var/log/mongodb/mongod.log -f -n 1000 | grep repl

see last 1000 mongodb logs (all types)

sudo tail /var/log/mongodb/mongod.log -f -n 1000

jbutko

1. To communicate with google drive folder via unix command line you need to install rclone util at first: curl https://rclone.org/install.sh | sudo bash
2. Obtain client id and secret for communicating with google drive: https://rclone.org/drive/#making-your-own-client-id
3. Setup rclone for google drive via: https://rclone.org/drive/
4. If all works you should get list of your google drive folders/files: rclone lsf gdrive:

jbutko

1. Create bash script file, eg. nano /opt/scripts/reload-service.sh, add these commands in the file:

#!/bin/bash

NOW=$(date +"%d.%m.%Y_-_%H:%M:%S")

systemctl -q is-active mongod.service || \
echo "$NOW Mongod service down, restarting..." \
sudo service mongod restart