Differences

This shows you the differences between two versions of the page.

--- wiki:aws_cli_2fa [2024/10/16 14:18] – created antisa
+++ wiki:aws_cli_2fa [2024/10/29 13:58] (current) – [See also] add aws cli commands antisa
@@ Line 13: / Line 13: @@
 The //arn-of-the-mfa-device// is from the first command and //code-from-token// is just the 6-digit code from your 2FA app on your phone or somewhere.
-Then copy paste all of the fields in //~/.aws/credentials// file.
+Then copy paste all of the fields in //~/.aws/credentials// file, but <wrap hi>put it under a different profile</wrap> since you stil need the non-expiration creds used in commands above.
 Example:
@@ Line 44: / Line 44: @@
 <code>
-[myprofile]
+[myprofile-session]
 aws_access_key_id = xxxxxxxxxxxxxxxxxxx
 aws_secret_access_key = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
@@ Line 51: / Line 51: @@
 </code>
+Here's a bash script that adds the creds each time to the file. Just pass it token-code and add your serial number. Remember to source it e.g.
+  . ~/.local/bin/aws_get_session.sh 1234
+<file bash aws_get_session.sh>
+#!/bin/bash
+# run this script with source (.) command since we need access to
+# the exported AWS_PROFILE variable below in the parent shell e.g.
+# . ~/.local/bin/aws_get_session.sh 1234
+# debug
+# set -x
+if [ "${BASH_SOURCE[0]}" -ef "$0" ]
+then
+      echo "Hey, you should source this script, not execute it!"
+      echo "e.g. '. aws_get_session.sh 1234'"
+      exit 1
+fi
+if [ -z $1 ];then
+  echo "You must provide 2FA token!"
+  return 1
+fi
+# colors
+On_Yellow='\033[43m'
+On_White='\033[47m'
+NC='\033[0m' # No Color
+echo "Deleting old creds..."
+sed -i '/\[myprofile-session\]/,+4d' ~/.aws/credentials
+echo "Creating new creds..."
+# use existing profile
+KST=$(AWS_PROFILE=myprofile aws sts get-session-token --serial-number arn:aws:iam::xxxxxxxxxxxxxx:mfa/meandmyself --token-code "$1")
+cat << EOF >> ~/.aws/credentials
+[myprofile-session]
+aws_access_key_id = $(echo "$KST" | jq '.Credentials.AccessKeyId' | tr -d '"')
+aws_secret_access_key = $(echo "$KST" | jq '.Credentials.SecretAccessKey' | tr -d '"')
+aws_session_token = $(echo "$KST" | jq '.Credentials.SessionToken' | tr -d '"')
+EOF
+# below export will only work when sourcing this script
+export AWS_PROFILE=myprofile-session
+echo -e "Current AWS_PROFILE set to ${On_Yellow}$AWS_PROFILE${NC}"
+</file>
 ====== Tested on ======
   * aws-cli/2.12.5 Python/3.11.4 Linux/6.8.0-45-generic exe/x86_64.ubuntu.22 prompt/off
 ====== See also ======
+    * [[wiki:aws_cli_commands|aws cli commands]]
 ====== References ======
   * https://stackoverflow.com/questions/34795780/how-to-use-mfa-with-aws-cli
   * https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_use-resources.html