jzwiep

#!/bin/bash

# Assume the role using locally configured AWS credentials, then pass the assumed role to the container via environment 
# variables!

ASSUMED_ROLE=$(aws sts assume-role \
        --role-arn "arn:aws:iam::000000000000:role/our-role-to-assume" \
        --role-session-name "session_name" \
        --output text)

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docker-compose exec -e COLUMNS=$(shell tput cols) -e LINES=$(shell tput lines) <container> <command>

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PARAMS_LIST=$(aws ssm get-parameters-by-path \
        --path "/var/path/" \
        --recursive \
        --query 'Parameters[*].[Name, Value]' \
        --output text \
        --with-decryption)

#   "/var/path/VARNAME variable_value" --> "export VARNAME=variable_value"
EXPORT_STATEMENTS=$(echo "$PARAMS_LIST" | awk '{ sub(".*/", "", $1); printf("export %s=\"%s\"\n", $1, $2) }')