I received this error when trying to copy files from an ec2 instance to an S3 bucket.

Credentials were checked, double and triple checked. The issue in my case was the aws cli version on the ec2 was too old.

To upgrade to the latest, carry out the instructions here:

https://www.linuxtutorial.co.uk/install-the-aws-cli-using-the-bundled-installer/

1. Download the zip

curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip"

2. Unzip

unzip awscli-bundle.zip

3. Install

sudo ./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws

1. List docker containers:

docker ps

2. Backup container

docker commit -p <container-ID> backup-name

3. The backup image will be listed in the docker images list:

docker images

4. Now backup the image as a tar file:

docker save -o backup-name.tar backup-name

The following fixed the issue on AWS EC2:

unset PYTHON_INSTALL_LAYOUT

/root/.local/share/letsencrypt/bin/pip install --upgrade certbot

mysql -h hostname.com -u user -p dbname --execute="select DISTINCT(column_name) from tablename" > file.txt