forked from lix-project/lix-installer
100 lines
2.4 KiB
Bash
100 lines
2.4 KiB
Bash
![]() |
#!/usr/bin/env nix-shell
|
||
|
#!nix-shell -p vault awscli2 jq -i bash
|
||
|
# shellcheck shell=bash
|
||
|
|
||
|
set +x # don't leak secrets!
|
||
|
set -eu
|
||
|
umask 077
|
||
|
|
||
|
scriptroot=$(dirname "$(realpath "$0")")
|
||
|
scratch=$(mktemp -d -t tmp.XXXXXXXXXX)
|
||
|
|
||
|
vault token lookup &>/dev/null || {
|
||
|
echo "You're not logged in to vault! Exiting."
|
||
|
exit 1
|
||
|
}
|
||
|
|
||
|
function finish {
|
||
|
set +e
|
||
|
rm -rf "$scratch"
|
||
|
if [ "${VAULT_EXIT_ACCESSOR:-}" != "" ]; then
|
||
|
if vault token lookup &>/dev/null; then
|
||
|
echo "--> Revoking my token..." >&2
|
||
|
vault token revoke -self
|
||
|
fi
|
||
|
fi
|
||
|
set -e
|
||
|
}
|
||
|
trap finish EXIT
|
||
|
|
||
|
assume_role() {
|
||
|
role=$1
|
||
|
echo "--> Assuming role: $role" >&2
|
||
|
vault_creds=$(vault token create \
|
||
|
-display-name="$role" \
|
||
|
-format=json \
|
||
|
-role "$role")
|
||
|
|
||
|
VAULT_EXIT_ACCESSOR=$(jq -r .auth.accessor <<<"$vault_creds")
|
||
|
export VAULT_TOKEN
|
||
|
VAULT_TOKEN=$(jq -r .auth.client_token <<<"$vault_creds")
|
||
|
}
|
||
|
|
||
|
function provision_aws_creds() {
|
||
|
url="$1"
|
||
|
local ok=
|
||
|
echo "--> Setting AWS variables: " >&2
|
||
|
echo " AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN" >&2
|
||
|
|
||
|
aws_creds=$(vault kv get -format=json "$url")
|
||
|
export AWS_ACCESS_KEY_ID
|
||
|
AWS_ACCESS_KEY_ID=$(jq -r .data.access_key <<<"$aws_creds")
|
||
|
export AWS_SECRET_ACCESS_KEY
|
||
|
AWS_SECRET_ACCESS_KEY=$(jq -r .data.secret_key <<<"$aws_creds")
|
||
|
export AWS_SESSION_TOKEN
|
||
|
AWS_SESSION_TOKEN=$(jq -r .data.security_token <<<"$aws_creds")
|
||
|
if [ -z "$AWS_SESSION_TOKEN" ] || [ "$AWS_SESSION_TOKEN" == "null" ]; then
|
||
|
unset AWS_SESSION_TOKEN
|
||
|
fi
|
||
|
|
||
|
echo "--> Preflight testing the AWS credentials..." >&2
|
||
|
for _ in {0..20}; do
|
||
|
if check_output=$(aws sts get-caller-identity 2>&1 >/dev/null); then
|
||
|
ok=1
|
||
|
break
|
||
|
else
|
||
|
echo -n "." >&2
|
||
|
sleep 1
|
||
|
fi
|
||
|
done
|
||
|
if [[ -z "$ok" ]]; then
|
||
|
echo $'\nPreflight test failed:\n'"$check_output" >&2
|
||
|
return 1
|
||
|
fi
|
||
|
echo
|
||
|
unset aws_creds
|
||
|
}
|
||
|
|
||
|
assume_role "internalservices_nix_installer_developer"
|
||
|
provision_aws_creds "internalservices/aws/creds/nix_installer"
|
||
|
|
||
|
if [ "${1:-}" == "" ]; then
|
||
|
cat <<\BASH > "$scratch/bashrc"
|
||
|
expiration_ts=$(date +%s -d "$(vault token lookup -format=json | jq -r '.data.expire_time')")
|
||
|
vault_prompt() {
|
||
|
local remaining=$(( $expiration_ts - $(date '+%s')))
|
||
|
if [[ "$remaining" -lt 1 ]]; then
|
||
|
remaining=expired
|
||
|
printf '\n\e[01;33mtoken expired\e[m';
|
||
|
return
|
||
|
fi
|
||
|
printf '\n\e[01;32mTTL:%ss\e[m' "$remaining"
|
||
|
}
|
||
|
PROMPT_COMMAND=vault_prompt
|
||
|
BASH
|
||
|
|
||
|
bash --init-file "$scratch/bashrc"
|
||
|
else
|
||
|
"$@"
|
||
|
fi
|