ci/Jenkinsfile

@@ -0,0 +1,146 @@
+pipeline {
+    agent none
+
+    stages {
+        stage('SSHCA') {
+            matrix {
+                axes {
+                    axis {
+                        name 'COMPONENT'
+                        values 'client', 'server'
+                    }
+                    axis {
+                        name 'ARCH'
+                        values 'amd64', 'arm64'
+                    }
+                }
+
+                excludes {
+                    exclude {
+                        axis {
+                            name 'COMPONENT'
+                            values 'server'
+                        }
+                        axis {
+                            name 'ARCH'
+                            values 'arm64'
+                        }
+                    }
+                }
+
+                stages {
+                    stage('Server') {
+                        when {
+                            expression {
+                                env.COMPONENT == 'server'
+                            }
+                        }
+                        agent {
+                            kubernetes {
+                                yamlFile 'ci/serverPodTemplate.yaml'
+                                yamlMergeStrategy merge()
+                                defaultContainer 'buildah'
+                            }
+                        }
+                        stages {
+                            stage('Build - Server') {
+                                steps {
+                                    sh '. ci/build-server.sh'
+                                }
+                            }
+
+                            stage('Publish - Server') {
+                                steps {
+                                    withEnv([
+                                        "REGISTRY_AUTH_FILE=${env.WORKSPACE_TMP}/auth.json"
+                                    ]) {
+                                        withCredentials([usernamePassword(
+                                            credentialsId: 'jenkins-packages',
+                                            usernameVariable: 'BUILDAH_USERNAME',
+                                            passwordVariable: 'BUILDAH_PASSWORD',
+                                        )]) {
+                                            sh """
+                                                buildah login \
+                                                --username \${BUILDAH_USERNAME} \
+                                                --password \${BUILDAH_PASSWORD} \
+                                                git.pyrocufflink.net
+                                            """
+                                        }
+                                        sh '. ci/publish-server.sh'
+                                    }
+                                }
+                            }
+                        }
+                    }
+
+                    stage('CLI') {
+                        when {
+                            expression {
+                                env.COMPONENT = 'client'
+                            }
+                        }
+                        agent {
+                            kubernetes {
+                                yamlFile 'ci/clientPodTemplate.yaml'
+                                yamlMergeStrategy merge()
+                                defaultContainer 'fedora'
+                                nodeSelector "kubernetes.io/arch=${ARCH}"
+                            }
+                        }
+                        environment {
+                            GNUPGHOME = "${env.WORKSPACE_TMP}/gnupg"
+                        }
+                        stages {
+                            stage('Prepare - CLI') {
+                                steps {
+                                    sh '. ci/prepare-client.sh'
+                                }
+                            }
+
+                            stage('Build - CLI') {
+                                steps {
+                                    sh '. ci/build-client.sh'
+                                    script {
+                                        if (env.BRANCH_NAME == 'master') {
+                                            withCredentials([
+                                                file(
+                                                    credentialsId: 'rpm-gpg-key',
+                                                    variable: 'RPM_GPG_PRIVATE_KEY',
+                                                ),
+                                                file(
+                                                    credentialsId: 'rpm-gpg-key-passphrase',
+                                                    variable: 'RPM_GPG_KEY_PASSPHRASE',
+                                                ),
+                                            ]) {
+                                                sh '. ci/sign-rpms.sh'
+                                            }
+                                        }
+                                    }
+                                }
+                                post {
+                                    success {
+                                        dir('cli') {
+                                            archiveArtifacts '*.rpm'
+                                        }
+                                    }
+                                }
+                            }
+
+                            stage('Publish - CLI') {
+                                when {
+                                    branch 'master'
+                                }
+                                steps {
+                                    sshagent(['jenkins-repohost']) {
+                                        sh '. ci/publish-client.sh'
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+
+            }
+        }
+    }
+}

ci/build-client.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+cd cli
+make rpm

ci/build-server.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+. ci/common.sh
+
+buildah build -t "${IMAGE_NAME}:${TAG}" server

ci/clientPodTemplate.yaml

@@ -0,0 +1,17 @@
+spec:
+  containers:
+  - name: fedora
+    image: registry.fedoraproject.org/fedora:38
+    command:
+    - cat
+    stdin: true
+    tty: true
+    volumeMounts:
+    - mountPath: /etc/ssh/ssh_known_hosts
+      name: ssh-known-hosts
+      subPath: ssh_known_hosts
+  hostUsers: false
+  volumes:
+  - name: ssh-known-hosts
+    configMap:
+      name: ssh-known-hosts

ci/common.sh

@@ -0,0 +1,13 @@
+escape_name() {
+    echo "$1" \
+        | tr A-Z a-z \
+        | sed -e 's/[^a-zA-Z0-9._-]/-/g' -e 's/^[.-]/_/'
+}
+
+REGISTRY_URL=git.pyrocufflink.net
+NAMESPACE=containerimages
+NAME="${JOB_NAME#*/}"
+NAME=$(escape_name "${NAME%/*}")
+TAG=$(escape_name "${BRANCH_NAME}")
+
+IMAGE_NAME="${REGISTRY_URL}/${NAMESPACE}/${NAME}"

ci/prepare-client.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+dnf install -y \
+	--setopt install_weak_deps=0 \
+	cargo \
+	cargo-rpm-macros \
+	make \
+	openssh-clients \
+	openssl-devel \
+	rpm-build \
+	rpm-sign \
+	rsync \
+	rust \
+	systemd-rpm-macros \
+	tar \
+	--
+
+install -m u=rwx,go= -d "${GNUPGHOME}"
+cat > "${GNUPGHOME}"/gpg-agent.conf <<EOF
+allow-loopback-pinentry
+EOF

ci/publish-client.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+ARCH="$(uname -m)"
+REPO_HOST=jenkins@files.pyrocufflink.blue
+REPO_PATH=/srv/www/repohost/repos/dch/fedora/$(rpm --eval %fedora)
+
+ssh-add -l
+ssh-add -L
+
+case "${ARCH}" in
+x86_64)
+    # only include the SRPM once
+    include='*.rpm'
+    ;;
+*)
+    include="*.${ARCH}.rpm"
+    ;;
+esac
+
+rsync -rtiO \
+    --chmod=ugo=rwX \
+    --include "${include}" \
+    --exclude '*' \
+    cli/ \
+    "${REPO_HOST}:${REPO_PATH}/"

ci/publish-server.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+. ci/common.sh
+
+buildah push "${IMAGE_NAME}:${TAG}" "${IMAGE_NAME}:${TAG}-${BUILD_NUMBER}"
+buildah push "${IMAGE_NAME}:${TAG}"
+case "${BRANCH_NAME}" in
+master|main)
+    buildah push "${IMAGE_NAME}:${TAG}" "${IMAGE_NAME}:latest"
+    ;;
+esac

ci/serverPodTemplate.yaml

@@ -0,0 +1,19 @@
+spec:
+  containers:
+  - name: buildah
+    image: quay.io/containers/buildah:v1
+    command:
+    - cat
+    stdin: true
+    tty: true
+    securityContext:
+      capabilities:
+        add:
+        - SYS_ADMIN
+        - MKNOD
+        - SYS_CHROOT
+        - SETFCAP
+    resources:
+      limits:
+        github.com/fuse: 1
+  hostUsers: false

ci/sign-rpms.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+gpg2 --pinentry-mode loopback --passphrase-fd 0 \
+    --import "${RPM_GPG_PRIVATE_KEY}" \
+    < "${RPM_GPG_KEY_PASSPHRASE}"
+
+rpmsign --addsign \
+    -D '_gpg_name jenkins@pyrocufflink.net' \
+    -D '_gpg_sign_cmd_extra_args --pinentry-mode loopback --passphrase-fd 3' \
+    cli/*.rpm \
+    3< "${RPM_GPG_KEY_PASSPHRASE}"
+

cli/.gitignore

@@ -0,0 +1,5 @@
+/target
+/vendor
+/*.log
+/*.tar.xz
+/*.rpm

cli/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "sshca-cli"
+version = "0.1.1"
+description = "CLI client for SSHCA"
+homepage = "https://git.pyrocufflink.net/dustin/sshca"
+authors = ["Dustin C. Hatch <dustin@hatch.name>"]
+license = "MIT OR Apache-2.0"
+edition = "2021"
+
+[dependencies]
+argh = "0.1.12"
+argon2 = { version = "0.5.2", default-features = false, features = ["alloc"] }
+gethostname = "0.4.3"
+jsonwebtoken = { version = "9.1.0", default-features = false }
+reqwest = { version = "0.11.22", features = ["multipart"] }
+serde = { version = "1.0.190", features = ["derive"] }
+tokio = { version = "1.33.0", features = ["rt", "macros"] }
+tracing = "0.1.40"
+tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
+uuid = "1.5.0"

cli/LICENSE-Apache-2.0.txt

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
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+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
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+   Copyright [yyyy] [name of copyright owner]
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
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+
+   Unless required by applicable law or agreed to in writing, software
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

cli/LICENSE-MIT.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) [year] [fullname]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

cli/Makefile

@@ -0,0 +1,79 @@
+NAME := sshca-cli
+VERSION := $(shell sed -nr '/^version =/s/version = "(.*)"/\1/p' Cargo.toml)
+RELEASE := $(shell rpm --eval "$$(sed -nr '/^Release:/s/Release:\s*(.*)/\1/p' sshca-cli.spec)")
+ARCH := $(shell uname -m)
+
+MOCK_CONFIG = fedora-$(shell rpm --eval %fedora)-$(ARCH)
+
+debug: target/debug/$(NAME)
+
+release: target/release/$(NAME)
+
+target/debug/$(NAME): $(find src) $(wildcard Cargo.*)
+	cargo build
+
+target/release/$(NAME): $(find src) $(wildcard Cargo.*)
+	cargo build --release
+
+rpm: $(NAME)-$(VERSION)-$(RELEASE).$(ARCH).rpm
+
+$(NAME)-$(VERSION)-$(RELEASE).$(ARCH).rpm: \
+		$(NAME)-$(VERSION)-$(RELEASE).src.rpm
+	mkdir -p rpmbuild
+	rpmbuild --rebuild \
+		-D "_topdir ${PWD}/rpmbuild" \
+		$<
+	mv rpmbuild/RPMS/$(ARCH)/*.rpm .
+	rm -rf rpmbuild
+
+srpm: $(NAME)-$(VERSION)-$(RELEASE).src.rpm
+
+$(NAME)-$(VERSION)-$(RELEASE).src.rpm: \
+		$(NAME).spec \
+		$(NAME)-$(VERSION).tar.xz \
+		$(NAME)-$(VERSION)-vendor.tar.xz
+	rpmbuild -bs \
+		-D "_topdir ${PWD}" \
+		-D '_builddir %{_topdir}' \
+		-D '_buildrootdir %{_topdir}' \
+		-D '_rpmdir %{_topdir}' \
+		-D '_sourcedir %{_topdir}' \
+		-D '_specdir %{_topdir}' \
+		-D '_srcrpmdir %{_topdir}' \
+		$<
+
+$(NAME)-$(VERSION).tar.xz: \
+		$(shell find src -type f) \
+		Cargo.toml \
+		Cargo.lock \
+		$(wildcard LICENSE-*.txt)
+	tar -czf $@ \
+		--transform 's/^/$(NAME)-$(VERSION)\//' \
+		src \
+		Cargo.lock \
+		Cargo.toml \
+		LICENSE-*.txt
+
+$(NAME)-$(VERSION)-vendor.tar.xz: Cargo.lock
+	cargo vendor
+	tar -czf $@ vendor
+
+mockbuild: $(NAME)-$(VERSION)-$(RELEASE).src.rpm
+	mock -r $(MOCK_CONFIG) --resultdir $(PWD) $<
+
+clean:
+	rm -f $(NAME)*-$(VERSION)-$(RELEASE).*.rpm
+	rm -f $(NAME)-$(VERSION).tar.xz
+	rm -f $(NAME)-$(VERSION)-vendor.tar.xz
+	rm -f build.log hw_info.log installed_pkgs.log root.log state.log
+
+fullclean: clean
+	rm -rf target
+
+.PHONY: \
+	clean \
+	debug \
+	mockbuild \
+	release \
+	rpm \
+	srpm

cli/src/main.rs

@@ -0,0 +1,237 @@
+use std::path::PathBuf;
+use std::time;
+
+use argh::FromArgs;
+use argon2::Argon2;
+use jsonwebtoken::{encode, EncodingKey};
+use reqwest::multipart::{Form, Part};
+use reqwest::{StatusCode, Url};
+use serde::Serialize;
+use tracing::{debug, error, info};
+use tracing_subscriber::EnvFilter;
+use uuid::Uuid;
+
+static RPI_SERIAL_PATH: &str = "/sys/firmware/devicetree/base/serial-number";
+static DMI_UUID_PATH: &str = "/sys/class/dmi/id/product_uuid";
+
+/// SSH CA client CLI
+#[derive(FromArgs)]
+struct Args {
+    #[argh(subcommand)]
+    command: Subcommand,
+}
+
+#[derive(FromArgs)]
+#[argh(subcommand)]
+enum Subcommand {
+    Host(HostArgs),
+}
+
+/// Manage host keys and certificates
+#[derive(FromArgs)]
+#[argh(subcommand, name = "host")]
+struct HostArgs {
+    #[argh(subcommand)]
+    command: HostSubcommand,
+}
+
+#[derive(FromArgs)]
+#[argh(subcommand)]
+enum HostSubcommand {
+    Sign(SignArgs),
+}
+
+/// Request a signed certificate for an SSH public key
+#[derive(FromArgs)]
+#[argh(subcommand, name = "sign")]
+struct SignArgs {
+    /// path to destination SSH host certificate file
+    #[argh(option, short = 'c')]
+    output: Option<PathBuf>,
+
+    /// path to SSH host public key file to sign
+    #[argh(positional)]
+    pubkey: PathBuf,
+}
+
+#[derive(Debug, Serialize)]
+struct Claims {
+    sub: String,
+    iss: String,
+    aud: String,
+    iat: u64,
+    nbf: u64,
+    exp: u64,
+}
+
+type MainResult = Result<(), Box<dyn std::error::Error>>;
+
+#[tokio::main(flavor = "current_thread")]
+async fn main() {
+    tracing_subscriber::fmt()
+        .with_env_filter(EnvFilter::from_default_env())
+        .with_writer(std::io::stderr)
+        .init();
+
+    match inner_main().await {
+        Ok(_) => (),
+        Err(e) => {
+            eprintln!("{}", e);
+            std::process::exit(1);
+        }
+    }
+}
+
+async fn inner_main() -> MainResult {
+    let args: Args = argh::from_env();
+    match args.command {
+        Subcommand::Host(args) => host_cmd(args).await,
+    }
+}
+
+async fn host_cmd(args: HostArgs) -> MainResult {
+    match args.command {
+        HostSubcommand::Sign(args) => sign_key(args).await,
+    }
+}
+
+async fn sign_key(args: SignArgs) -> MainResult {
+    let url = match std::env::var("SSHCA_SERVER") {
+        Ok(v) => v,
+        Err(std::env::VarError::NotPresent) => {
+            return Err("SSHCA_SERVER environment variable is not set".into());
+        }
+        Err(std::env::VarError::NotUnicode(_)) => {
+            return Err("SSHCA_SERVER environment variable is invalid".into());
+        }
+    };
+    let Some(hostname) = get_hostname() else {
+        return Err("Hostname must be valid UTF-8".into());
+    };
+    let Some(machine_id) = get_machine_id() else {
+        return Err("Could not determine machine ID".into());
+    };
+
+    let pubkey = std::fs::read_to_string(&args.pubkey)?;
+
+    let mut url =
+        Url::parse(&url).map_err(|e| format!("Invalid URL: {}", e))?;
+    url.path_segments_mut()
+        .map_err(|_| "Invalid URL: missing host")?
+        .pop_if_empty()
+        .push("host")
+        .push("sign");
+
+    let form = Form::new().text("hostname", hostname.clone()).part(
+        "pubkey",
+        Part::bytes(pubkey.into_bytes()).file_name(
+            args.pubkey
+                .file_name()
+                .ok_or("Invalid public key file path")?
+                .to_str()
+                .ok_or("Invalid public key file path")?
+                .to_string(),
+        ),
+    );
+
+    let token = get_token(
+        &hostname,
+        &machine_id,
+        url.host_str().ok_or("Invalid URL: missing host")?,
+    )?;
+
+    let client = reqwest::Client::new();
+    info!(
+        "Requesting SSH host certificate for {} with key {}",
+        hostname,
+        args.pubkey.display()
+    );
+    debug!("Request: POST {}", url);
+    let res = client
+        .post(url)
+        .header("Authorization", format!("Bearer {}", token))
+        .multipart(form)
+        .send()
+        .await?;
+    debug!("Response: {:?} {}", &res.version(), &res.status());
+    match res.error_for_status_ref() {
+        Ok(_) => (),
+        Err(e) if e.status() == Some(StatusCode::BAD_REQUEST) => {
+            let msg = res.text().await.unwrap_or_else(|e| e.to_string());
+            error!("{}: {}", e, msg);
+            return Err(format!("{}\n{}", e, msg).into());
+        }
+        Err(e) => {
+            error!("{}", e);
+            return Err(e.into());
+        }
+    };
+    let cert = res.text().await?;
+    if let Some(path) = args.output {
+        std::fs::write(path, cert)?;
+    } else {
+        println!("{}", cert);
+    }
+    Ok(())
+}
+
+fn get_hostname() -> Option<String> {
+    gethostname::gethostname().into_string().ok()
+}
+
+fn get_machine_id() -> Option<Uuid> {
+    match std::fs::read_to_string(RPI_SERIAL_PATH) {
+        Ok(s) => match Uuid::parse_str(&format!(
+            "{:0>32}",
+            s.trim_end_matches('\0')
+        )) {
+            Ok(u) => return Some(u),
+            Err(e) => {
+                debug!("Invalid UUID: {}", e);
+            }
+        },
+        Err(e) => {
+            debug!("Could not read Raspberry Pi serial number: {}", e)
+        }
+    };
+    match std::fs::read_to_string(DMI_UUID_PATH) {
+        Ok(s) => match Uuid::parse_str(s.trim_end()) {
+            Ok(u) => return Some(u),
+            Err(e) => {
+                debug!("Invalid UUID: {}", e);
+            }
+        },
+        Err(e) => {
+            debug!("Could not read DMI product UUID from sysfs: {}", e);
+        }
+    };
+    None
+}
+
+fn get_token(
+    hostname: &str,
+    machine_id: &Uuid,
+    server: &str,
+) -> Result<String, Box<dyn std::error::Error>> {
+    let now = time::SystemTime::now()
+        .duration_since(time::UNIX_EPOCH)?
+        .as_secs();
+    let claims = Claims {
+        sub: hostname.into(),
+        iss: hostname.into(),
+        aud: server.split(':').next().unwrap().into(),
+        nbf: now - 60,
+        iat: now,
+        exp: now + 60,
+    };
+    let mut secret = [0u8; 32];
+    Argon2::default()
+        .hash_password_into(
+            machine_id.as_bytes(),
+            hostname.as_bytes(),
+            &mut secret,
+        )
+        .map_err(|e| e.to_string())?;
+    let key = EncodingKey::from_secret(&secret);
+    Ok(encode(&Default::default(), &claims, &key)?)
+}

cli/ssh-host-cert-sign@.service

@@ -0,0 +1,34 @@
+[Unit]
+Description=Request %I SSH Host Certificate
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+EnvironmentFile=-/etc/sysconfig/ssh-host-cert-sign
+ExecStart=/usr/bin/sshca-cli host sign --output /etc/ssh/ssh_host_%I_key-cert.pub /etc/ssh/ssh_host_%I_key.pub
+
+CapabilityBoundingSet=CAP_CHOWN
+DeviceAllow=
+DevicePolicy=closed
+LockPersonality=yes
+MemoryDenyWriteExecute=yes
+NoNewPrivileges=yes
+PrivateDevices=yes
+PrivateUsers=yes
+PrivateTmp=yes
+ProcSubset=pid
+ProtectClock=yes
+ProtectControlGroups=yes
+ProtectHome=yes
+ProtectHostname=yes
+ProtectKernelLogs=yes
+ProtectKernelModules=yes
+ProtectKernelTunables=yes
+ProtectProc=invisible
+ProtectSystem=strict
+ReadWritePaths=/etc/ssh
+RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
+RestrictNamespaces=yes
+RestrictRealtime=yes
+RestrictSUIDSGID=yes

cli/ssh-host-certs-renew.target

@@ -0,0 +1,7 @@
+# vim: set ft=systemd :
+[Unit]
+Description=Request SSH Host Certificates
+StopWhenUnneeded=yes
+Wants=ssh-host-cert-sign@ed25519.service
+Wants=ssh-host-cert-sign@rsa.service
+Wants=ssh-host-cert-sign@ecdsa.service

cli/ssh-host-certs-renew.timer

@@ -0,0 +1,12 @@
+# vim: set ft=systemd :
+[Unit]
+Description=Periodically renew SSH host certificates
+
+[Timer]
+Unit=%N.target
+OnCalendar=Tue *-*-* 00:00:00
+RandomizedDelaySec=48h
+Persistent=yes
+
+[Install]
+WantedBy=timers.target

cli/ssh-host-certs.target

@@ -0,0 +1,10 @@
+# vim: set ft=systemd :
+[Unit]
+Description=Request SSH Host Certificates
+ConditionFirstBoot=yes
+Wants=ssh-host-cert-sign@ed25519.service
+Wants=ssh-host-cert-sign@rsa.service
+Wants=ssh-host-cert-sign@ecdsa.service
+
+[Install]
+WantedBy=multi-user.target

cli/sshca-cli.spec

@@ -0,0 +1,93 @@
+# Generated by rust2rpm 25
+%bcond_without check
+
+# prevent library files from being installed
+%global __cargo_is_lib() 0
+
+%global crate sshca-cli
+
+Name:           sshca-cli
+Version:        0.1.1
+Release:        1%{?dist}
+Summary:        CLI client for SSHCA
+
+SourceLicense:  MIT OR Apache-2.0
+License:        MIT OR Apache-2.0
+# LICENSE.dependencies contains a full license breakdown
+
+URL:            https://git.pyrocufflink.net/dustin/sshca
+Source:         sshca-cli-%{version}.tar.xz
+Source:         sshca-cli-%{version}-vendor.tar.xz
+Source:         ssh-host-cert-sign@.service
+Source:         ssh-host-certs.target
+Source:         ssh-host-certs-renew.target
+Source:         ssh-host-certs-renew.timer
+
+ExclusiveArch:  %{rust_arches}
+
+BuildRequires:  cargo-rpm-macros >= 25
+BuildRequires:  openssl-devel
+BuildRequires:  systemd-rpm-macros
+
+%global _description %{expand:
+CLI client for SSHCA.}
+
+%description %{_description}
+
+%package systemd
+Summary:        systemd units for managing SSH host certificates with SSHCA
+Requires:       %{name} = %{version}
+
+%description systemd
+A collection of systemd service, timer, and target units that automatically
+request and renew SSH host certificates from an SSHCA server.
+
+%prep
+%autosetup -n %{crate}-%{version} -p1 -a1
+%cargo_prep -v vendor
+
+
+%build
+%cargo_build
+%{cargo_license_summary}
+%{cargo_license} > LICENSE.dependencies
+%{cargo_vendor_manifest}
+
+%install
+%cargo_install
+
+mkdir -p $RPM_BUILD_ROOT%{_unitdir}
+install -m u=rw,go=r \
+	%{SOURCE2} \
+	%{SOURCE3} \
+	%{SOURCE4} \
+	%{SOURCE5} \
+	$RPM_BUILD_ROOT%{_unitdir}
+
+%if %{with check}
+%check
+%cargo_test
+%endif
+
+%post systemd
+%systemd_post ssh-host-certs.target ssh-host-certs-renew.timer
+
+%preun systemd
+%systemd_preun ssh-host-certs.target ssh-host-certs-renew.timer
+
+%postun systemd
+%systemd_postun ssh-host-certs.target ssh-host-certs-renew.timer
+
+%files
+%license LICENSE-Apache-2.0.txt
+%license LICENSE-MIT.txt
+%license LICENSE.dependencies
+%license cargo-vendor.txt
+%{_bindir}/sshca-cli
+
+%files systemd
+%{_unitdir}/*
+
+%changelog
+* Sun Nov 05 2023 Dustin C. Hatch <dustin@hatch.name> - 0.1.0-1
+- Initial package

server/.gitattributes

@@ -0,0 +1 @@
+Cargo.lock -diff

server/rustfmt.toml

@@ -0,0 +1 @@
+max_width  = 79