simplified greenboot with implementation in rust

the pr currently implements only greenboot health-check,
failing required script and missing required directory
will render health-check as failure whcih in turn will
trigger reboot until boot_counter reaches -1,
motd is implemented with
status as greedboot/redboot in figlet.
greenboot can work without config file as default values
are embedded in the script itself.

Signed-off-by: Sayan Paul <paul.sayan@gmail.com>

Author: say-paul

.devcontainer/Dockerfile

@@ -0,0 +1,9 @@
+FROM fedora:latest
+
+RUN bash -c "$(curl -fsSL "https://raw.githubusercontent.com/microsoft/vscode-dev-containers/main/script-library/common-redhat.sh")" -- "true" "vscode" "1000" "1000" "true"
+
+RUN dnf install -y \
+    sudo git cargo rust rust-src git-core clippy rustfmt \
+    && dnf clean all
+
+USER vscode

.devcontainer/devcontainer.json

@@ -0,0 +1,28 @@
+{
+	"name": "greenboot-rs",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"runArgs": [
+		"--cap-add=SYS_PTRACE",
+		"--security-opt",
+		"seccomp=unconfined"
+	],
+	"settings": {
+		"rust-analyzer.checkOnSave.command": "clippy"
+	},
+	"extensions": [
+		"mutantdino.resourcemonitor",
+		"matklad.rust-analyzer",
+		"serayuzgur.crates"
+	],
+	"hostRequirements": {
+		"memory": "4gb"
+	},
+	"remoteUser": "vscode",
+	"updateContentCommand": [
+		"cargo",
+		"build"
+	],
+	"waitFor": "onCreateCommand"
+}

.github/workflows/ci.yml

@@ -1,7 +1,7 @@
 on:
   push:
     branches:
-    - main
+    - greenboot-rs
   pull_request:
 
 name: Continuous integration
@@ -22,20 +22,18 @@ jobs:
           skip: "./docs/Gemfile.lock,./docs/_config.yml,./.github,./.git,./greenboot.spec,./dist"
 
   fmt:
-    name: Rustfmt
+    name: Cargo fmt
     runs-on: ubuntu-latest
+    container: fedora:latest
     steps:
+      - name: Install deps
+        run: |
+          dnf install -y cargo rustfmt
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - run: rustup component add rustfmt
       - uses: actions-rs/cargo@v1
         with:
           command: fmt
-          args: --all -- --check
+          args: --check --all
 
   clippy:
     name: Clippy
@@ -67,7 +65,7 @@ jobs:
     steps:
       - name: Install deps
         run: |
-          dnf install -y make gcc git cargo rust git clevis
+          dnf install -y make gcc git cargo rust git
       - uses: actions/checkout@v3
         with:
           persist-credentials: false
@@ -91,30 +89,8 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: test
-      # This is primarily to ensure that changes to fdo_data.h are committed,
-      # which is critical for determining whether any stability changes were made
-      # during the PR review.
-      - name: Ensure building did not change any code
-        run: |
-          git diff --exit-code
-
-  commitlint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-      - uses: actions/setup-node@v3
-        with:
-          node-version: 'latest'
-      - name: Install commitlint dependencies
-        run: npm install commitlint
-      - uses: wagoid/commitlint-github-action@v5
-        env:
-          NODE_PATH: ${{ github.workspace }}/node_modules
-        with:
-          configFile: .github/commitlint.config.js
-          failOnWarnings: true
+          args: -- --test-threads=1
+      
 
   # manpages:
   #   name: Test man page generation
@@ -136,6 +112,6 @@ jobs:
   #     - name: Install devcontainer CLI
   #       run: npm install -g @vscode/dev-container-cli
   #     - name: Build devcontainer
-  #       run: devcontainer build --image-name devcontainer-fdo-rs .
+  #       run: devcontainer build --image-name greenboot-rs .
   #     - name: Test building in devcontainer
-  #       run: docker run --rm -v `pwd`:/code:z --workdir /code --user root devcontainer-fdo-rs cargo build --verbose
+  #       run: docker run --rm -v `pwd`:/code:z --workdir /code --user root greenboot-rs cargo build --verbose

Cargo.toml

@@ -15,3 +15,5 @@ nix = "0.25.0"
 glob = "0.3.0"
 serde = "1.0"
 serde_json = "1.0"
+thiserror = "1.0.38"
+figlet-rs = "0.1.5"

dist/systemd/system/greenboot-trigger.service

@@ -1,13 +1,13 @@
 [Unit]
-Description=Greenboot - TODO
-After=multi-user.target
+Description=greenboot Health Checks Runner
 Before=boot-complete.target
+OnFailureJobMode=fail
 
 [Service]
 Type=oneshot
 RemainAfterExit=yes
-ExecStart=/usr/libexec/greenboot/greenboot check
-Restart=no
+ExecStart=/usr/libexec/greenboot/greenboot health-check
 
 [Install]
 RequiredBy=boot-complete.target
+WantedBy=multi-user.target

dist/systemd/system/greenboot.service

@@ -0,0 +1,4 @@
+# Greenboot configuration file
+
+## Generic
+GREENBOOT_MAX_BOOT_ATTEMPTS=3

etc/greenboot/greenboot.conf

@@ -41,94 +41,108 @@ Requires:           rpm-ostree
 Requires:           pam >= 1.4.0
 # While not strictly necessary to generate the motd, the main use-case of this package is to display it on SSH login
 Recommends:         openssh
-Provides:           greenboot-auto-update-fallback
-Obsoletes:          greenboot-auto-update-fallback <= 0.12.0
-Provides:           greenboot-grub2
-Obsoletes:          greenboot-grub2 <= 0.12.0
-Provides:           greenboot-reboot
-Obsoletes:          greenboot-reboot <= 0.12.0
-Provides:           greenboot-status
-Obsoletes:          greenboot-status <= 0.12.0
-Provides:           greenboot-rpm-ostree-grub2
-Obsoletes:          greenboot-rpm-ostree-grub2 <= 0.12.0
 # List of bundled crate in vendor tarball, generated with:
 # cargo metadata --locked --format-version 1 | CRATE_NAME="greenboot" ./bundled-provides.jq
 Provides: bundled(crate(ahash)) = 0.7.6
-Provides: bundled(crate(aho-corasick)) = 0.7.19
-Provides: bundled(crate(anyhow)) = 1.0.65
-Provides: bundled(crate(async-trait)) = 0.1.57
+Provides: bundled(crate(aho-corasick)) = 0.7.20
+Provides: bundled(crate(anstream)) = 0.2.6
+Provides: bundled(crate(anstyle)) = 0.3.5
+Provides: bundled(crate(anstyle-parse)) = 0.1.1
+Provides: bundled(crate(anstyle-wincon)) = 0.2.0
+Provides: bundled(crate(anyhow)) = 1.0.70
+Provides: bundled(crate(async-trait)) = 0.1.68
 Provides: bundled(crate(atty)) = 0.2.14
 Provides: bundled(crate(autocfg)) = 1.1.0
-Provides: bundled(crate(base64)) = 0.13.0
+Provides: bundled(crate(base64)) = 0.13.1
 Provides: bundled(crate(bitflags)) = 1.3.2
-Provides: bundled(crate(block-buffer)) = 0.10.3
+Provides: bundled(crate(block-buffer)) = 0.10.4
+Provides: bundled(crate(cc)) = 1.0.79
 Provides: bundled(crate(cfg-if)) = 1.0.0
-Provides: bundled(crate(clap)) = 4.0.4
-Provides: bundled(crate(clap_derive)) = 4.0.1
-Provides: bundled(crate(clap_lex)) = 0.3.0
-Provides: bundled(crate(config)) = 0.13.2
-Provides: bundled(crate(cpufeatures)) = 0.2.5
+Provides: bundled(crate(clap)) = 4.2.0
+Provides: bundled(crate(clap_builder)) = 4.2.0
+Provides: bundled(crate(clap_derive)) = 4.2.0
+Provides: bundled(crate(clap_lex)) = 0.4.1
+Provides: bundled(crate(concolor-override)) = 1.0.0
+Provides: bundled(crate(concolor-query)) = 0.3.3
+Provides: bundled(crate(config)) = 0.13.3
+Provides: bundled(crate(cpufeatures)) = 0.2.6
 Provides: bundled(crate(crypto-common)) = 0.1.6
-Provides: bundled(crate(digest)) = 0.10.5
+Provides: bundled(crate(digest)) = 0.10.6
 Provides: bundled(crate(dlv-list)) = 0.3.0
 Provides: bundled(crate(env_logger)) = 0.7.1
-Provides: bundled(crate(generic-array)) = 0.14.6
-Provides: bundled(crate(getrandom)) = 0.2.7
-Provides: bundled(crate(glob)) = 0.3.0
+Provides: bundled(crate(errno)) = 0.3.0
+Provides: bundled(crate(errno-dragonfly)) = 0.1.2
+Provides: bundled(crate(figlet-rs)) = 0.1.5
+Provides: bundled(crate(generic-array)) = 0.14.7
+Provides: bundled(crate(getrandom)) = 0.2.8
+Provides: bundled(crate(glob)) = 0.3.1
 Provides: bundled(crate(hashbrown)) = 0.12.3
-Provides: bundled(crate(heck)) = 0.4.0
+Provides: bundled(crate(heck)) = 0.4.1
 Provides: bundled(crate(hermit-abi)) = 0.1.19
+Provides: bundled(crate(hermit-abi)) = 0.3.1
 Provides: bundled(crate(humantime)) = 1.3.0
-Provides: bundled(crate(itoa)) = 1.0.3
+Provides: bundled(crate(io-lifetimes)) = 1.0.9
+Provides: bundled(crate(is-terminal)) = 0.4.6
+Provides: bundled(crate(itoa)) = 1.0.6
 Provides: bundled(crate(json5)) = 0.4.1
 Provides: bundled(crate(lazy_static)) = 1.4.0
-Provides: bundled(crate(libc)) = 0.2.133
+Provides: bundled(crate(libc)) = 0.2.140
 Provides: bundled(crate(linked-hash-map)) = 0.5.6
+Provides: bundled(crate(linux-raw-sys)) = 0.3.0
 Provides: bundled(crate(log)) = 0.4.17
 Provides: bundled(crate(memchr)) = 2.5.0
 Provides: bundled(crate(memoffset)) = 0.6.5
 Provides: bundled(crate(minimal-lexical)) = 0.2.1
-Provides: bundled(crate(nix)) = 0.25.0
-Provides: bundled(crate(nom)) = 7.1.1
-Provides: bundled(crate(once_cell)) = 1.15.0
+Provides: bundled(crate(nix)) = 0.25.1
+Provides: bundled(crate(nom)) = 7.1.3
+Provides: bundled(crate(once_cell)) = 1.17.1
 Provides: bundled(crate(ordered-multimap)) = 0.4.3
-Provides: bundled(crate(os_str_bytes)) = 6.3.0
 Provides: bundled(crate(pathdiff)) = 0.2.1
-Provides: bundled(crate(pest)) = 2.3.1
-Provides: bundled(crate(pest_derive)) = 2.3.1
-Provides: bundled(crate(pest_generator)) = 2.3.1
-Provides: bundled(crate(pest_meta)) = 2.3.1
+Provides: bundled(crate(pest)) = 2.5.6
+Provides: bundled(crate(pest_derive)) = 2.5.6
+Provides: bundled(crate(pest_generator)) = 2.5.6
+Provides: bundled(crate(pest_meta)) = 2.5.6
 Provides: bundled(crate(pin-utils)) = 0.1.0
 Provides: bundled(crate(pretty_env_logger)) = 0.4.0
-Provides: bundled(crate(proc-macro-error)) = 1.0.4
-Provides: bundled(crate(proc-macro-error-attr)) = 1.0.4
-Provides: bundled(crate(proc-macro2)) = 1.0.43
+Provides: bundled(crate(proc-macro2)) = 1.0.54
 Provides: bundled(crate(quick-error)) = 1.2.3
-Provides: bundled(crate(quote)) = 1.0.21
-Provides: bundled(crate(regex)) = 1.6.0
-Provides: bundled(crate(regex-syntax)) = 0.6.27
+Provides: bundled(crate(quote)) = 1.0.26
+Provides: bundled(crate(regex)) = 1.7.3
+Provides: bundled(crate(regex-syntax)) = 0.6.29
 Provides: bundled(crate(ron)) = 0.7.1
 Provides: bundled(crate(rust-ini)) = 0.18.0
-Provides: bundled(crate(ryu)) = 1.0.11
-Provides: bundled(crate(serde)) = 1.0.144
-Provides: bundled(crate(serde_derive)) = 1.0.144
-Provides: bundled(crate(serde_json)) = 1.0.85
-Provides: bundled(crate(sha1)) = 0.10.5
+Provides: bundled(crate(rustix)) = 0.37.4
+Provides: bundled(crate(ryu)) = 1.0.13
+Provides: bundled(crate(serde)) = 1.0.159
+Provides: bundled(crate(serde_derive)) = 1.0.159
+Provides: bundled(crate(serde_json)) = 1.0.95
+Provides: bundled(crate(sha2)) = 0.10.6
 Provides: bundled(crate(strsim)) = 0.10.0
-Provides: bundled(crate(syn)) = 1.0.100
-Provides: bundled(crate(termcolor)) = 1.1.3
-Provides: bundled(crate(thiserror)) = 1.0.35
-Provides: bundled(crate(thiserror-impl)) = 1.0.35
-Provides: bundled(crate(toml)) = 0.5.9
-Provides: bundled(crate(typenum)) = 1.15.0
+Provides: bundled(crate(syn)) = 1.0.109
+Provides: bundled(crate(syn)) = 2.0.11
+Provides: bundled(crate(termcolor)) = 1.2.0
+Provides: bundled(crate(thiserror)) = 1.0.40
+Provides: bundled(crate(thiserror-impl)) = 1.0.40
+Provides: bundled(crate(toml)) = 0.5.11
+Provides: bundled(crate(typenum)) = 1.16.0
 Provides: bundled(crate(ucd-trie)) = 0.1.5
-Provides: bundled(crate(unicode-ident)) = 1.0.4
+Provides: bundled(crate(unicode-ident)) = 1.0.8
+Provides: bundled(crate(utf8parse)) = 0.2.1
 Provides: bundled(crate(version_check)) = 0.9.4
 Provides: bundled(crate(wasi)) = 0.11.0+wasi_snapshot_preview1
 Provides: bundled(crate(winapi)) = 0.3.9
 Provides: bundled(crate(winapi-i686-pc-windows-gnu)) = 0.4.0
 Provides: bundled(crate(winapi-util)) = 0.1.5
 Provides: bundled(crate(winapi-x86_64-pc-windows-gnu)) = 0.4.0
+Provides: bundled(crate(windows-sys)) = 0.45.0
+Provides: bundled(crate(windows-targets)) = 0.42.2
+Provides: bundled(crate(windows_aarch64_gnullvm)) = 0.42.2
+Provides: bundled(crate(windows_aarch64_msvc)) = 0.42.2
+Provides: bundled(crate(windows_i686_gnu)) = 0.42.2
+Provides: bundled(crate(windows_i686_msvc)) = 0.42.2
+Provides: bundled(crate(windows_x86_64_gnu)) = 0.42.2
+Provides: bundled(crate(windows_x86_64_gnullvm)) = 0.42.2
+Provides: bundled(crate(windows_x86_64_msvc)) = 0.42.2
 Provides: bundled(crate(yaml-rust)) = 0.4.5
 
 %description
@@ -147,7 +161,11 @@ cat >.cargo/config << EOF
 [build]
 rustc = "%{__rustc}"
 rustdoc = "%{__rustdoc}"
+%if 0%{?rhel} && !0%{?eln}
 rustflags = %{__global_rustflags_toml}
+%else
+rustflags = "%{__global_rustflags_toml}"
+%endif
  
 [install]
 root = "%{buildroot}%{_prefix}"
@@ -182,6 +200,7 @@ install -Dpm0644 -t %{buildroot}%{_unitdir} \
 # add config
 mkdir -p %{buildroot}%{_exec_prefix}/lib/motd.d/
 mkdir -p %{buildroot}%{_libexecdir}/%{name}
+install -Dpm0644 -t %{buildroot}%{_sysconfdir}/%{name} etc/greenboot/greenboot.conf
 mkdir -p %{buildroot}%{_sysconfdir}/%{name}/check/required.d
 mkdir    %{buildroot}%{_sysconfdir}/%{name}/check/wanted.d
 mkdir    %{buildroot}%{_sysconfdir}/%{name}/green.d
@@ -196,23 +215,20 @@ mkdir -p %{buildroot}%{_tmpfilesdir}
 
 %post
 %systemd_post greenboot.service
-%systemd_post greenboot-trigger.service
 
 %preun
 %systemd_preun greenboot.service
-%systemd_preun greenboot-trigger.service
 
 %postun
 %systemd_postun greenboot.service
-%systemd_postun greenboot-trigger.service
 
 %files
 %doc README.md
 %license LICENSE
 %dir %{_libexecdir}/%{name}
 %{_libexecdir}/%{name}/%{name}
 %{_unitdir}/greenboot.service
-%{_unitdir}/greenboot-trigger.service
+%{_sysconfdir}/%{name}/greenboot.conf
 %dir %{_prefix}/lib/%{name}
 %dir %{_prefix}/lib/%{name}/check
 %dir %{_prefix}/lib/%{name}/check/required.d