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fix(aws): support MFA for profiles without role to assume (#9411)
Previously, the plugin only supported MFA for profiles that had a role to assume, specified in role_arn. Now, the plugin supports MFA for profiles without a role to assume. Closes #9408 * refactor(aws plugin): remove dependency on jq Previously, acp command relied on jq. Now that dependency has been removed, as well as some linter suggestions implemented.
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Maksym
GitHub
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2 changed files with 58 additions and 46 deletions
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@ -3,7 +3,7 @@
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This plugin provides completion support for [awscli](https://docs.aws.amazon.com/cli/latest/reference/index.html)
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and a few utilities to manage AWS profiles and display them in the prompt.
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To use it, make sure [jq](https://stedolan.github.io/jq/download/) is installed, and add `aws` to the plugins array in your zshrc file.
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To use it, add `aws` to the plugins array in your zshrc file.
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```zsh
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plugins=(... aws)
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@ -40,6 +40,6 @@ plugins=(... aws)
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The plugin creates an `aws_prompt_info` function that you can use in your theme, which displays
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the current `$AWS_PROFILE`. It uses two variables to control how that is shown:
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- ZSH_THEME_AWS_PREFIX: sets the prefix of the AWS_PROFILE. Defaults to `<aws:`.
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* ZSH_THEME_AWS_PREFIX: sets the prefix of the AWS_PROFILE. Defaults to `<aws:`.
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- ZSH_THEME_AWS_SUFFIX: sets the suffix of the AWS_PROFILE. Defaults to `>`.
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* ZSH_THEME_AWS_SUFFIX: sets the suffix of the AWS_PROFILE. Defaults to `>`.
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@ -39,60 +39,73 @@ function acp() {
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return 1
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fi
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local exists="$(aws configure get aws_access_key_id --profile $1)"
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local aws_access_key_id="$(aws configure get aws_access_key_id --profile $1)"
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local aws_secret_access_key="$(aws configure get aws_secret_access_key --profile $1)"
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local aws_session_token="$(aws configure get aws_session_token --profile $1)"
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local mfa_serial="$(aws configure get mfa_serial --profile $1)"
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local role_arn="$(aws configure get role_arn --profile $1)"
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local aws_access_key_id=""
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local aws_secret_access_key=""
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local aws_session_token=""
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if [[ -n $exists || -n $role_arn ]]; then
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if [[ -n $role_arn ]]; then
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local mfa_serial="$(aws configure get mfa_serial --profile $1)"
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local mfa_token=""
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local mfa_opt=""
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if [[ -n $mfa_serial ]]; then
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echo "Please enter your MFA token for $mfa_serial:"
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read mfa_token
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echo "Please enter the session duration in seconds (900-43200; default: 3600, which is the default maximum for a role):"
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read sess_duration
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if [[ -z $sess_duration ]]; then
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sess_duration="3600"
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fi
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mfa_opt="--serial-number $mfa_serial --token-code $mfa_token --duration-seconds $sess_duration"
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fi
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local ext_id="$(aws configure get external_id --profile $1)"
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local extid_opt=""
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if [[ -n $ext_id ]]; then
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extid_opt="--external-id $ext_id"
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fi
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# First, if the profile has MFA configured, lets get the token and session duration
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local mfa_opt=""
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local profile=$1
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local source_profile="$(aws configure get source_profile --profile $1)"
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if [[ -n $source_profile ]]; then
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profile=$source_profile
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fi
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if [[ -n $mfa_serial ]]; then
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local mfa_token=""
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echo "Please enter your MFA token for $mfa_serial:"
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read -r mfa_token
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echo "Please enter the session duration in seconds (900-43200; default: 3600, which is the default maximum for a role):"
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read -r sess_duration
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if [[ -z $sess_duration ]]; then
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sess_duration="3600"
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fi
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mfa_opt="--serial-number $mfa_serial --token-code $mfa_token --duration-seconds $sess_duration"
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fi
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echo "Assuming role $role_arn using profile $profile"
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local assume_cmd=(aws sts assume-role "--profile=$profile" "--role-arn $role_arn" "--role-session-name "$profile"" "$mfa_opt" "$extid_opt")
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local JSON="$(eval ${assume_cmd[@]})"
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# Now see whether we need to just MFA for the current role, or assume a different one
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local credentials_output=""
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if [[ -n $role_arn ]]; then
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# Means we need to assume a specified role
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aws_access_key_id="$(echo $JSON | jq -r '.Credentials.AccessKeyId')"
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aws_secret_access_key="$(echo $JSON | jq -r '.Credentials.SecretAccessKey')"
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aws_session_token="$(echo $JSON | jq -r '.Credentials.SessionToken')"
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else
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aws_access_key_id="$(aws configure get aws_access_key_id --profile $1)"
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aws_secret_access_key="$(aws configure get aws_secret_access_key --profile $1)"
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aws_session_token="$(aws configure get aws_session_token --profile $1)"
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# Check whether external_id is configured to use while assuming the role
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local ext_id="$(aws configure get external_id --profile $1)"
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local extid_opt=""
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if [[ -n $ext_id ]]; then
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extid_opt="--external-id $ext_id"
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fi
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# Get source profile to use to assume role
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local profile=$1
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local source_profile="$(aws configure get source_profile --profile "$1")"
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if [[ -n $source_profile ]]; then
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profile=$source_profile
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fi
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echo "Assuming role $role_arn using profile $profile"
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local assume_cmd=(aws sts assume-role "--profile=$profile" "--role-arn $role_arn" "--role-session-name $profile" "$mfa_opt" "$extid_opt"
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"--query '[Credentials.AccessKeyId,Credentials.SecretAccessKey,Credentials.SessionToken]' --output text | tr '\t' '\n'")
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credentials_output="$(eval "${assume_cmd[@]}")"
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elif [[ -n $mfa_opt ]]; then
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# Means we only need to do MFA
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echo "Obtaining session token for profile $profile"
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local get_token_cmd=(aws sts get-session-token "--profile=$profile" "$mfa_opt"
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"--query '[Credentials.AccessKeyId,Credentials.SecretAccessKey,Credentials.SessionToken]' --output text | tr '\t' '\n'")
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credentials_output="$(eval "${get_token_cmd[@]}")"
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fi
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if [[ -n $credentials_output ]]; then
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local credentials=("${(f)credentials_output}")
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aws_access_key_id=${credentials[1]}
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aws_secret_access_key=${credentials[2]}
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aws_session_token=${credentials[3]}
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fi
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if [[ -n $aws_access_key_id && -n $aws_secret_access_key ]]; then
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export AWS_DEFAULT_PROFILE=$1
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export AWS_PROFILE=$1
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export AWS_EB_PROFILE=$1
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export AWS_ACCESS_KEY_ID=$aws_access_key_id
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export AWS_SECRET_ACCESS_KEY=$aws_secret_access_key
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[[ -z "$aws_session_token" ]] && unset AWS_SESSION_TOKEN || export AWS_SESSION_TOKEN=$aws_session_token
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echo "Switched to AWS Profile: $1";
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echo "Switched to AWS Profile: $1"
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fi
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}
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@ -120,8 +133,7 @@ function aws_profiles() {
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function _aws_profiles() {
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reply=($(aws_profiles))
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}
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compctl -K _aws_profiles asp aws_change_access_key
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compctl -K _aws_profiles acp aws_change_access_key
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compctl -K _aws_profiles asp acp aws_change_access_key
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# AWS prompt
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function aws_prompt_info() {
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