Initial Commit

.gitignore

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+*~
+*.bak
+*.tfstate*
+
+**/.envrc
+**/.terraform*

README.md

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+# Example shell provider prototype
+
+An example of using the [shell_resource]https://github.com/scottwinkler/terraform-provider-shell/blob/master/examples/test/scripts/read.sh) provider
+to quickly prototype up a  new Terraform provider and resource with full support
+for:
+
+- Create
+- Delete
+- Update (in-place)
+- Read
+
+The missing piece of documentation from the [shell provider](https://github.com/scottwinkler/terraform-provider-shell/blob/master/examples/test/scripts/read.sh) is the fact that the "previous output" is fed as input to the shell scripts
+that implement Read, Update and Delete.
+
+See: https://github.com/scottwinkler/terraform-provider-shell/issues/96

main.tf

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+resource "shell_script" "helloworld" {
+  lifecycle_commands {
+    create = file("${path.module}/shell_resources/helloworld/create.sh")
+    read   = file("${path.module}/shell_resources/helloworld/read.sh")
+    update = file("${path.module}/shell_resources/helloworld/update.sh")
+    delete = file("${path.module}/shell_resources/helloworld/delete.sh")
+  }
+
+  environment = {
+    NAME      = "World"
+  }
+}
+
+output "hello" {
+  sensitive = true
+  value     = shell_script.helloworld.output
+}

pvodier.tf

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+terraform {
+  required_providers {
+    shell = {
+      source = "scottwinkler/shell"
+      version = "1.7.7"
+    }
+  }
+}

shell_resources/helloworld/create.sh

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+#!/bin/sh
+
+set -e
+
+echo "Creating $NAME ..."
+
+id="$(echo "$NAME" | sha256sum | cut -f 1 -d ' ')"
+
+cat > "$id" <<EOF
+Hello ${NAME}!
+EOF
+
+cat <<EOF
+{
+  "id": "$id"
+}
+EOF

shell_resources/helloworld/delete.sh

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+#!/bin/sh
+
+set -e
+
+# Read previous state into a temporary file
+IN="$(cat)"
+
+id="$(echo "$IN" | jq -r '.id')"
+
+echo "Deleting $id ..." >&2
+rm -f "$id"

shell_resources/helloworld/read.sh

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+#!/bin/sh
+
+set -e
+
+echo "Reading $NAME ..." >&2
+
+id="$(echo "$NAME" | sha256sum | cut -f 1 -d ' ')"
+
+cat <<EOF
+{
+  "id": "$id"
+}
+EOF

shell_resources/helloworld/update.sh

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+#!/bin/sh
+
+set -e
+
+echo "Updating $NAME ..." >&2
+ 
+IN="$(cat)"
+oldId="$(echo "$IN" | jq -r '.id')"
+newId="$(echo "$NAME" | sha256sum | cut -f 1 -d ' ')"
+
+if [ "$oldId" = "$newId" ]; then
+	echo "Nothing to do..." >&2
+	exit 0
+fi
+
+echo "Removing $oldId ..." >&2
+rm -rf "$oldId"
+
+cat > "$newId" <<EOF
+Hello ${NAME}!
+EOF
+
+cat <<EOF
+{
+  "id": "$newId"
+}
+EOF