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notify/aws_ses: add container/instance IAM role auth (IMDSv2)

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aws_ses_send calls `_use_container_role || _use_instance_role` when no
static AWS keys are set, but those functions were never defined -- only
_use_metadata was -- so role-based auth silently fell through to the
"no api key" error. Add both, using the current IMDSv2-capable versions
from dns_aws.sh, and set the IMDSv2 token header in _use_metadata so the
credential fetch works on IMDSv2-only instances.

Closes #4742
This commit is contained in:
neil 2026-07-05 17:09:51 +08:00
parent 7def43481a
commit 934711e51d
1 changed files with 36 additions and 0 deletions
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36
notify/aws_ses.sh
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@ -83,7 +83,43 @@ aws_ses_send() {
response="$(aws_rest POST "" "" "$_data")"
}
_use_container_role() {
# automatically set if running inside ECS
if [ -z "$AWS_CONTAINER_CREDENTIALS_RELATIVE_URI" ]; then
_debug "No ECS environment variable detected"
return 1
fi
_use_metadata "169.254.170.2$AWS_CONTAINER_CREDENTIALS_RELATIVE_URI"
}
_use_instance_role() {
_instance_role_name_url="http://169.254.169.254/latest/meta-data/iam/security-credentials/"
if _get "$_instance_role_name_url" true 1 | _head_n 1 | grep -Fq 401; then
_debug "Using IMDSv2"
_token_url="http://169.254.169.254/latest/api/token"
export _H1="X-aws-ec2-metadata-token-ttl-seconds: 21600"
_token="$(_post "" "$_token_url" "" "PUT")"
_secure_debug3 "_token" "$_token"
if [ -z "$_token" ]; then
_debug "Unable to fetch IMDSv2 token from instance metadata"
return 1
fi
export _H1="X-aws-ec2-metadata-token: $_token"
fi
if ! _get "$_instance_role_name_url" true 1 | _head_n 1 | grep -Fq 200; then
_debug "Unable to fetch IAM role from instance metadata"
return 1
fi
_instance_role_name=$(_get "$_instance_role_name_url" "" 1)
_debug "_instance_role_name" "$_instance_role_name"
_use_metadata "$_instance_role_name_url$_instance_role_name" "$_token"
}
_use_metadata() {
export _H1="X-aws-ec2-metadata-token: $2"
_aws_creds="$(
_get "$1" "" 1 |
_normalizeJson |