diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_access_key_id.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_access_key_id.md
new file mode 100644
index 000000000..c3d0f7033
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_access_key_id.md
@@ -0,0 +1 @@
+*Optional*. The access key ID to use for authenticating with ECR.
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_region.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_region.md
new file mode 100644
index 000000000..dcc9cb89d
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_region.md
@@ -0,0 +1,4 @@
+*Optional*. The region to use for
+  accessing ECR. This is required if you are using ECR. This region
+  will help determine the full repository URL you are accessing
+  (e.g., `012345678910.dkr.ecr.us-east-1.amazonaws.com`)
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_role_arn.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_role_arn.md
new file mode 100644
index 000000000..1e54b645c
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_role_arn.md
@@ -0,0 +1,3 @@
+*Optional*. If set, then this role will
+  be assumed before authenticating to ECR. An error will occur if
+  `aws_role_arns` is also specified. This is kept for backward compatibility.
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_role_arns.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_role_arns.md
new file mode 100644
index 000000000..87c06c24e
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_role_arns.md
@@ -0,0 +1,4 @@
+*Optional*. An array of AWS IAM roles.
+  If set, these roles will be assumed in the specified order before
+  authenticating to ECR. An error will occur if `aws_role_arn`
+  is also specified.
\ No newline at end of file
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_secret_access_key .md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_secret_access_key .md
new file mode 100644
index 000000000..f679e60f8
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_secret_access_key .md	
@@ -0,0 +1 @@
+*Optional*. The secret access key to use for authenticating with ECR.
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_session_token.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_session_token.md
new file mode 100644
index 000000000..0da2407f0
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/aws_session_token.md
@@ -0,0 +1,2 @@
+*Optional*. The session token to use for authenticating with
+  STS credentials with ECR.
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/ca_certs.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/ca_certs.md
new file mode 100644
index 000000000..347ae761d
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/ca_certs.md
@@ -0,0 +1,15 @@
+*Optional*. An array of PEM-encoded CA certificates. Example:
+```yaml
+ca_certs:
+- |
+  -----BEGIN CERTIFICATE-----
+  ...
+  -----END CERTIFICATE-----
+- |
+  -----BEGIN CERTIFICATE-----
+  ...
+  -----END CERTIFICATE-----
+``` 
+Each entry specifies the x509 CA certificate for the trusted docker registry.
+This is used to validate the certificate of the docker registry when the
+registry's certificate is signed by a custom authority (or itself).
\ No newline at end of file
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/insecure.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/insecure.md
new file mode 100644
index 000000000..23a234986
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/insecure.md
@@ -0,0 +1 @@
+*Optional. Default `false`.* Allow insecure registry.
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/semver_constraint.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/semver_constraint.md
new file mode 100644
index 000000000..7c1b44928
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/semver_constraint.md
@@ -0,0 +1,7 @@
+*Optional.* Constrain the returned semver
+  tags according to a semver constraint, e.g.
+  `"~1.2.x"`, `">= 1.2 < 3.0.0 || >= 4.2.3"`. Follows the rules outlined in
+  [https://github.com/Masterminds/semver#checking-version-constraints](https://github.com/Masterminds/semver#checking-version-constraints)
+
+
+  
\ No newline at end of file
diff --git a/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/variant.md b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/variant.md
new file mode 100644
index 000000000..1d292729c
--- /dev/null
+++ b/headless-services/concourse-language-server/src/main/resources/desc/RegistryImageSource/variant.md
@@ -0,0 +1,6 @@
+*Optional.* Detect only tags matching this
+  variant suffix, and push version tags with this suffix applied. For example,
+  a value of `stretch` would be used for tags like `1.2.3-stretch`. This is
+  typically used *without* `tag` - if it is set, this value will only used for
+  pushing, not checking.
+  
\ No newline at end of file