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website: Credentials helper response for no creds 

For a credentials helper plugin to be useful with Terraform 0.13+, we
need to cope with the case of having no credentials for a host without
this being an error. This is to allow the public Terraform Registry to
be accessed without supplying a token.

The way to implement this is to respond to queries for credentials for a
host which has no credentials stored with an empty object and a success
exit code. This contradicts the previous documentation, which calls for
an error response in this case.
This commit is contained in:
Alisdair McDiarmid 2020-09-15 09:00:44 -04:00
parent f5bce1bd39
commit aa8c73cd18
1 changed files with 6 additions and 3 deletions
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9
website/docs/internals/credentials-helpers.html.md
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@ -83,9 +83,12 @@ If the credentials helper is able to provide credentials for the given host
then it must print a JSON credentials object to its stdout stream and then then it must print a JSON credentials object to its stdout stream and then
exit with status code zero to indicate success. exit with status code zero to indicate success.
If it is unable to provide the requested credentials for any reason, it must If the credentials helper definitively has no credentials for the given host,
print an end-user-oriented plain text error message to its stderr stream and then it must print an empty JSON object to stdout and exit with status zero.
then exit with a _non-zero_ status code.
If the credentials helper is unable to provide the requested credentials for
any other reason, it must print an end-user-oriented plain text error message
to its stderr stream and then exit with a _non-zero_ status code.
## `store`: store new credentials for the given hostname ## `store`: store new credentials for the given hostname