wasmCloud install guide

content/install-guides/wasmcloud.md

@@ -0,0 +1,185 @@
+---
+title: wasmCloud
+description: Install and verify the wash CLI for wasmCloud on Arm Linux so you can develop and run WebAssembly components on Arm servers and cloud instances.
+minutes_to_complete: 10
+official_docs: https://wasmcloud.com/docs/installation/
+author: Jason Andrews
+draft: true
+additional_search_terms:
+  - wash
+  - WebAssembly
+  - WASI
+  - Graviton
+  - aarch64
+
+### FIXED, DO NOT MODIFY
+weight: 1
+tool_install: true
+multi_install: false
+multitool_install_part: false
+layout: installtoolsall
+---
+
+[wasmCloud](https://wasmcloud.com/) hosts applications packaged as WebAssembly components. Its Wasm Shell, `wash`, provides commands for developing, building, and running components, including a local development server through `wash dev`.
+
+You can install `wash` on Arm Linux without compiling wasmCloud or installing Rust. To build an application, you'll need the appropriate language toolchain.
+
+## Before you begin
+
+You need an Arm Linux system and internet access. Confirm your processor architecture:
+
+```bash
+uname -m
+```
+
+The output is similar to:
+
+```output
+aarch64
+```
+
+## Install wash
+
+There are two ways to install `wash`. The install script is the simplest option and always installs the latest version. The GitHub release download lets you pin a specific version and verify the checksum before installing.
+
+### Install using the install script
+
+Run the install script to download and install `wash`:
+
+```bash
+curl -fsSL https://wasmcloud.com/sh | bash
+```
+
+The script detects your platform automatically and installs `wash` to `~/.wash/bin`. The output is similar to:
+
+```output
+[INFO] Installing wash - The Wasm Shell
+[INFO] Install directory: ~/.wash/bin
+[INFO] Detecting platform...
+[INFO] Platform detected: aarch64-unknown-linux-gnu
+[INFO] Fetching latest release information...
+[INFO] Version: v2.12.0
+[INFO] Downloading wash binary...
+[SUCCESS] wash v2.12.0 installed successfully to ~/.wash/bin/wash
+[SUCCESS] Verified installation
+```
+
+The script updates your shell profile automatically. Open a new terminal, or run the following to use `wash` in your current session:
+
+```bash
+source ~/.bashrc
+```
+
+### Install a specific version from GitHub
+
+Use this method when you need a pinned, verifiable install. You'll need `curl` and `ca-certificates`:
+
+```bash
+sudo apt-get update
+sudo apt-get install -y ca-certificates curl
+```
+
+{{% notice Note %}}
+The following commands use wash version 2.11.0. The same commands work with other versions. Replace the file used in these steps with the file for your version of choice. To find the latest version, see [wasmCloud releases](https://github.com/wasmCloud/wasmCloud/releases).
+{{% /notice %}}
+
+Download the prebuilt Arm64 binary:
+
+```bash
+mkdir -p "$HOME/.cache/wasmcloud-install/2.11.0"
+curl -fL --retry 3 \
+  https://github.com/wasmCloud/wasmCloud/releases/download/v2.11.0/wash-aarch64-unknown-linux-gnu \
+  -o "$HOME/.cache/wasmcloud-install/2.11.0/wash"
+```
+
+Verify the SHA-256 checksum against the value published for the [v2.11.0 release](https://github.com/wasmCloud/wasmCloud/releases/tag/v2.11.0):
+
+```bash
+printf '%s  %s\n' \
+  'c3b2204dd99ae2bc46c1236967f4a328cebe3b57d3d5a1605091618eff66bcad' \
+  "$HOME/.cache/wasmcloud-install/2.11.0/wash" \
+  | sha256sum --check
+```
+
+The output is similar to:
+
+```output
+/home/ubuntu/.cache/wasmcloud-install/2.11.0/wash: OK
+```
+
+If your username isn't `ubuntu`, the path shown will reflect your actual username. If the checksum fails, download the file again and confirm the version and asset name match before continuing.
+
+Install wash to your user executable directory:
+
+```bash
+mkdir -p "$HOME/.local/bin"
+install -m 0755 "$HOME/.cache/wasmcloud-install/2.11.0/wash" "$HOME/.local/bin/wash"
+```
+
+Add `$HOME/.local/bin` to your PATH:
+
+```bash
+export PATH="$HOME/.local/bin:$PATH"
+echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc
+```
+
+## Verify the installation
+
+Check the installed version:
+
+```bash
+wash --version
+```
+
+The output is similar to:
+
+```output
+wash 2.12.0
+```
+
+Confirm the development host command is available:
+
+```bash
+wash dev --help
+```
+
+The output is similar to:
+
+```output
+Start a development server for a Wasm component
+
+Usage: wash dev [OPTIONS]
+
+Options:
+  -o, --output <OUTPUT>
+          Specify output format (text or json)
+
+          [default: text]
+
+  -l, --log-level <LOG_LEVEL>
+          Set the opentelemetry log level (trace, debug, info, warn, error)
+
+          [default: INFO]
+
+      --verbose
+          Enable verbose output
+
+      --non-interactive
+          Run in non-interactive mode: skip terminal checks for host exec and accept the default
+          answer for any confirmation prompts. Automatically enabled when stdin is not a TTY
+
+      --user-config <USER_CONFIG>
+          Path to user configuration file
+
+      --meters <METERS>
+          What to measure about guests: `off`, `duration`, or `fuel` [default: duration]
+
+  -h, --help
+          Print help (see a summary with '-h')
+```
+
+Displaying help doesn't start a listener or load an application.
+
+## Next steps
+
+To build and run a WebAssembly application on AWS Graviton, see [Build and measure a WebAssembly application on AWS Graviton with wasmCloud](/learning-paths/servers-and-cloud-computing/wasmcloud/).