feat(ansible)!: install rust through rustup instead of apt (#6825)

Signed-off-by: Arjun Jagdish Ram <arjun.ram@tier4.jp>
Co-authored-by: Mete Fatih Cırıt <mfc@autoware.org>

Author: PanConChicharron

ansible/roles/rust/README.md

@@ -1,11 +1,11 @@
 # rust
 
-This role installs the Rust toolchain (rustc and cargo) via apt for building Autoware components that depend on Rust (e.g. acados and tera_renderer). Rustup is not installed; the system compiler and cargo from the distribution are used.
+This role installs the Rust toolchain (rustc and cargo) via [rustup](https://rustup.rs/) for building Autoware components that depend on Rust (e.g. acados and tera_renderer).
 
 ## Tools
 
-- rustc (apt)
-- cargo (apt)
+- rustc
+- cargo
 
 ## Inputs
 
@@ -15,17 +15,29 @@ This role installs the Rust toolchain (rustc and cargo) via apt for building Aut
 
 ## Manual Installation
 
+Reference: [Rust installation documentation](https://www.rust-lang.org/tools/install).
+
+```bash
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs -o /tmp/rustup-init.sh
+chmod +x /tmp/rustup-init.sh
+
+/tmp/rustup-init.sh -y
+```
+
+Add the following line to your `~/.bashrc`.
+
 ```bash
-sudo apt-get update
-sudo apt-get install -y rustc cargo build-essential
+. "$HOME/.cargo/env"
+```
+
+And source the file. (`source ~/.bashrc` or just call `bash` in the terminal).
 
+```bash
 # Verify
 cargo --version
 rustc --version
 ```
 
-For a user-managed toolchain (multiple Rust versions, rustup), see [Rust installation documentation](https://www.rust-lang.org/tools/install).
-
 ## Ansible Installation
 
 Install ansible following the instructions in the [ansible installation guide](../../README.md#ansible-installation).

ansible/roles/rust/tasks/main.yaml

@@ -1,18 +1,41 @@
-- name: Install Rust toolchain (rustc and cargo) and build dependencies via apt
-  become: true
-  ansible.builtin.apt:
-    name:
-      - rustc
-      - cargo
+- name: Download rustup-init script
+  become: false
+  ansible.builtin.get_url:
+    url: https://sh.rustup.rs
+    dest: /tmp/rustup-init.sh
+    mode: "0755"
+
+- name: Install rustup using rustup-init script
+  become: false
+  ansible.builtin.command: /tmp/rustup-init.sh -y
+  args:
+    creates: "{{ ansible_env.HOME }}/.cargo/bin/rustc"
+
+- name: Ensure ~/.cargo/bin is in PATH via .bashrc
+  become: false
+  ansible.builtin.lineinfile:
+    path: "{{ ansible_env.HOME }}/.bashrc"
+    line: . "$HOME/.cargo/env"
+    insertafter: EOF
     state: present
-    update_cache: true
-    cache_valid_time: 3600
 
 - name: Check cargo version
-  ansible.builtin.command: cargo --version
+  become: false
+  ansible.builtin.shell: |
+    {{ ansible_env.HOME }}/.cargo/bin/cargo --version
   register: rust_cargo_version
   changed_when: false
 
 - name: Show cargo version
   ansible.builtin.debug:
     msg: "Cargo version: {{ rust_cargo_version.stdout }}"
+
+- name: Check rust version
+  become: false
+  ansible.builtin.command: "{{ ansible_env.HOME }}/.cargo/bin/rustc --version"
+  register: rust_rustc_version
+  changed_when: false
+
+- name: Show rust version
+  ansible.builtin.debug:
+    msg: "Rust version: {{ rust_rustc_version.stdout }}"