Samir Moussouni tezqa

UPDATE (March 2020, thanks @ic): I don't know the exact AMI version but yum install docker now works on the latest Amazon Linux 2. The instructions below may still be relevant depending on the vintage AMI you are using.

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start

Let's Encrypt

Examples of getting certificates from Let's Encrypt working on Apache, NGINX and Node.js servers.

Obtain certificates

I chose to use the manual method, you have to make a file available to verify you own the domain. Follow the commands from running

git clone https://github.com/letsencrypt/letsencrypt
cd letsencrypt

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

How to Download iOS Simulator (Xcode) in Command Line and Install it

For faster connection speed and more flexibility.

Steps

Start Xcode in command line by running this in commandline /Applications/Xcode.app/Contents/MacOS/Xcode
Start downloading of the simulator
Cancel it. YES CANCEL IT!
You will get a message like this:

	git tag -am "annotation goes here" tagname_goes_here # cut a tag
	git tag -d tagname_goes_here # burn it
	git tag -am "annotation goes here" tagname_goes_here # cut another tag
	git push --tags # push tags to remote
	git push origin :refs/tags/tagname_goes_here # delete tag from remote