Support iam service account (#43)

Signed-off-by: Matthew DeVenny <matt@boxboat.com>

docs/content/usage/crd-specs.md

@@ -60,7 +60,8 @@ RESOURCE: awsSecretsManager <Object>
 
 DESCRIPTION:
      AWS Secrets Manager configuration to allow the Dockhand Secrets Operator to
-     retrieve Secrets from AWS
+     retrieve Secrets from AWS. If no accessKeyId and secretAccessKey are provided
+     then chain credentials will be used.
 
 FIELDS:
    accessKeyId	<string>

go.mod

@@ -3,7 +3,7 @@ module github.com/boxboat/dockhand-secrets-operator
 go 1.17
 
 require (
-	github.com/boxboat/dockcmd v1.8.0
+	github.com/boxboat/dockcmd v1.8.1
 	github.com/gobuffalo/packr/v2 v2.8.3
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/rancher/lasso v0.0.0-20220218171253-7b0992de7155

go.sum

@@ -198,8 +198,8 @@ github.com/blang/semver v3.1.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnweb
 github.com/blang/semver v3.5.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
 github.com/blang/semver v3.5.1+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
-github.com/boxboat/dockcmd v1.8.0 h1:bXO6wIyPnxQhYNfb4gUo/ar6SaKdX4BuFYG0c1/z1wQ=
-github.com/boxboat/dockcmd v1.8.0/go.mod h1:wU7FB4PQ6X6Lckx3E5LYFAWOA3BhbTlDJWOoNka0QE4=
+github.com/boxboat/dockcmd v1.8.1 h1:2rhxCJTVOl5WBNceqBxaobRqBfqeuwOczBLM0kXPVpA=
+github.com/boxboat/dockcmd v1.8.1/go.mod h1:wU7FB4PQ6X6Lckx3E5LYFAWOA3BhbTlDJWOoNka0QE4=
 github.com/bshuster-repo/logrus-logstash-hook v0.4.1/go.mod h1:zsTqEiSzDgAa/8GZR7E1qaXrhYNDKBYy5/dWPTIflbk=
 github.com/bshuster-repo/logrus-logstash-hook v1.0.0/go.mod h1:zsTqEiSzDgAa/8GZR7E1qaXrhYNDKBYy5/dWPTIflbk=
 github.com/buger/jsonparser v0.0.0-20180808090653-f4dd9f5a6b44/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=