feat(ansible): build agave-validator from source

ansible/playbooks/doc-rpc-sol-min.yml

@@ -157,14 +157,101 @@
         path: "{{ solana_validator_bin }}"
       register: solana_validator_bin_stat
 
+    - name: Install Agave build dependencies (Debian/Ubuntu) when validator missing
+      ansible.builtin.apt:
+        name:
+          - build-essential
+          - pkg-config
+          - libssl-dev
+          - clang
+          - cmake
+          - protobuf-compiler
+          - libudev-dev
+          - zlib1g-dev
+        state: present
+        update_cache: true
+      when:
+        - ansible_facts.os_family == "Debian"
+        - not solana_validator_bin_stat.stat.exists
+
+    - name: Ensure Agave source parent directory exists
+      ansible.builtin.file:
+        path: "{{ agave_src_dir | dirname }}"
+        state: directory
+        owner: "{{ solana_user }}"
+        group: "{{ solana_group }}"
+        mode: "0755"
+      when: not solana_validator_bin_stat.stat.exists
+
+    - name: Install rustup (Agave build) for solana user when validator missing
+      ansible.builtin.shell: |
+        set -euo pipefail
+        curl -sSfL https://sh.rustup.rs | sh -s -- -y --default-toolchain "{{ agave_rust_toolchain }}"
+      become_user: "{{ solana_user }}"
+      environment:
+        HOME: "{{ solana_home }}"
+      args:
+        executable: /bin/bash
+        creates: "{{ solana_home }}/.cargo/bin/cargo"
+      when: not solana_validator_bin_stat.stat.exists
+
+    - name: Ensure Rust toolchain is installed for solana user when validator missing
+      ansible.builtin.shell: |
+        set -euo pipefail
+        export PATH="{{ solana_home }}/.cargo/bin:$PATH"
+        rustup toolchain install "{{ agave_rust_toolchain }}"
+      become_user: "{{ solana_user }}"
+      environment:
+        HOME: "{{ solana_home }}"
+      args:
+        executable: /bin/bash
+      when: not solana_validator_bin_stat.stat.exists
+
+    - name: Clone Agave sources when validator missing
+      ansible.builtin.git:
+        repo: "{{ agave_repo_url }}"
+        dest: "{{ agave_src_dir }}"
+        version: "{{ agave_version_tag }}"
+        depth: 1
+        update: true
+      become_user: "{{ solana_user }}"
+      environment:
+        HOME: "{{ solana_home }}"
+      when: not solana_validator_bin_stat.stat.exists
+
+    - name: Build agave-validator from sources when validator missing
+      ansible.builtin.shell: |
+        set -euo pipefail
+        export PATH="{{ solana_home }}/.cargo/bin:$PATH"
+        cd "{{ agave_src_dir }}"
+        cargo +{{ agave_rust_toolchain }} build --release -p agave-validator
+      become_user: "{{ solana_user }}"
+      environment:
+        HOME: "{{ solana_home }}"
+      args:
+        executable: /bin/bash
+        creates: "{{ agave_src_dir }}/target/release/agave-validator"
+      when: not solana_validator_bin_stat.stat.exists
+
+    - name: Install agave-validator to /opt/solana/bin when built
+      ansible.builtin.copy:
+        remote_src: true
+        src: "{{ agave_src_dir }}/target/release/agave-validator"
+        dest: "{{ solana_validator_bin }}"
+        owner: root
+        group: root
+        mode: "0755"
+      when: not solana_validator_bin_stat.stat.exists
+
+    - name: Re-check validator binary after source build
+      ansible.builtin.stat:
+        path: "{{ solana_validator_bin }}"
+      register: solana_validator_bin_stat
+
     - name: Ensure identity key exists
       ansible.builtin.shell: |
         set -euo pipefail
-        KEYGEN="{{ solana_keygen_primary_bin }}"
-        if [ ! -x "$KEYGEN" ]; then
-          KEYGEN="{{ solana_keygen_fallback_bin }}"
-        fi
-        "$KEYGEN" new --no-passphrase -o "{{ solana_identity_path }}"
+        "{{ solana_keygen_bin }}" new --no-passphrase -o "{{ solana_identity_path }}"
       become_user: "{{ solana_user }}"
       environment:
         HOME: "{{ solana_home }}"