96b786d647
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
263 lines
7.3 KiB
Bash
263 lines
7.3 KiB
Bash
#!/usr/bin/env bash
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# Copyright (c) 2021-2026 community-scripts ORG
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# Author: Joerg Heinemann (heinemannj)
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# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
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# Source: https://github.com/smallstep/certificates
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source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
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color
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verb_ip6
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catch_errors
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setting_up_container
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network_check
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update_os
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setup_deb822_repo \
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"smallstep" \
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"https://packages.smallstep.com/keys/apt/repo-signing-key.gpg" \
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"https://packages.smallstep.com/stable/debian" \
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"debs" \
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"main"
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msg_info "Installing step-ca and step-cli"
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$STD apt install -y step-ca step-cli
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msg_ok "Installed step-ca and step-cli"
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msg_info "Define smallstep environment variables"
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STEPHOME="/root/.step"
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$STD export STEPPATH=/etc/step-ca
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$STD export STEPHOME=$STEPHOME
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msg_ok "Defined smallstep environment variables"
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msg_info "Add smallstep environment variables to /etc/profile"
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$STD sed -i '1i export STEPPATH=/etc/step-ca' /etc/profile
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$STD sed -i '1i export STEPHOME=/root/.step' /etc/profile
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msg_ok "Added smallstep environment variables to /etc/profile"
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msg_info "Authorize step-ca binary with low port-binding capabilities"
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$STD setcap CAP_NET_BIND_SERVICE=+eip $(which step-ca)
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msg_ok "Authorized low port-binding capabilities"
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msg_info "Add a smallstep CA service user - Will only be used by systemd to manage the CA"
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$STD useradd --user-group --system --home $(step path) --shell /bin/false step
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msg_ok "Created smallstep CA service user"
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DeploymentType="standalone"
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DeploymentType="standalone"
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FQDN=$(hostname -f)
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DomainName=$(hostname -d)
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IP=$(hostname -I | awk '{print $1}')
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LISTENER=":443"
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PKIName="MyHomePKI"
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PKIProvisioner="pki@$DomainName"
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AcmeProvisioner="acme@$DomainName"
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X509MinDur="48h"
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X509MaxDur="87600h"
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X509DefaultDur="168h"
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msg_info "Initializing step-ca"
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EncryptionPwdDir="$(step path)/encryption"
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PwdFile="$EncryptionPwdDir/ca.pwd"
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ProvisionerPwdFile="$EncryptionPwdDir/provisioner.pwd"
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mkdir -p "$EncryptionPwdDir"
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$STD gpg --gen-random --armor 2 32 >"$PwdFile"
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$STD gpg --gen-random --armor 2 32 >"$ProvisionerPwdFile"
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$STD step ca init \
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--deployment-type=$DeploymentType \
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--ssh \
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--name=$PKIName \
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--dns="$FQDN" \
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--dns="$IP" \
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--address=$LISTENER \
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--provisioner="$PKIProvisioner" \
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--password-file="$PwdFile" \
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--provisioner-password-file="$ProvisionerPwdFile"
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ln -s "$PwdFile" "$(step path)/password.txt"
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chown -R step:step $(step path)
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chmod -R 700 $(step path)
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msg_ok "Initialized step-ca"
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msg_info "Add ACME provisioner"
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$STD step ca provisioner add "$AcmeProvisioner" --type ACME --admin-name "$AcmeProvisioner"
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msg_ok "Added ACME provisioner"
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msg_info "Update provisioner configurations"
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$STD step ca provisioner update "$PKIProvisioner" \
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--x509-min-dur=$X509MinDur \
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--x509-max-dur=$X509MaxDur \
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--x509-default-dur=$X509DefaultDur \
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--allow-renewal-after-expiry
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$STD step ca provisioner update "$AcmeProvisioner" \
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--x509-min-dur=$X509MinDur \
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--x509-max-dur=$X509MaxDur \
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--x509-default-dur=$X509DefaultDur \
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--allow-renewal-after-expiry
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msg_ok "Updated provisioner configurations"
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msg_info "Start step-ca as a Daemon"
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msg_info "Start step-ca as a Daemon"
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cat <<'EOF' >/etc/systemd/system/step-ca.service
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[Unit]
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Description=step-ca service
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Documentation=https://smallstep.com/docs/step-ca
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Documentation=https://smallstep.com/docs/step-ca/certificate-authority-server-production
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After=network-online.target
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Wants=network-online.target
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StartLimitIntervalSec=30
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StartLimitBurst=3
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ConditionFileNotEmpty=/etc/step-ca/config/ca.json
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ConditionFileNotEmpty=/etc/step-ca/password.txt
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[Service]
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Type=simple
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User=step
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Group=step
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Environment=STEPPATH=/etc/step-ca
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WorkingDirectory=/etc/step-ca
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ExecStart=/usr/bin/step-ca config/ca.json --password-file password.txt
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ExecReload=/bin/kill -USR1 $MAINPID
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Restart=on-failure
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RestartSec=5
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TimeoutStopSec=30
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StartLimitAction=reboot
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; Process capabilities & privileges
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AmbientCapabilities=CAP_NET_BIND_SERVICE
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CapabilityBoundingSet=CAP_NET_BIND_SERVICE
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SecureBits=keep-caps
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NoNewPrivileges=yes
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; Sandboxing
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SystemCallArchitectures=native
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SystemCallFilter=@system-service
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SystemCallFilter=~@resources @privileged
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RestrictNamespaces=yes
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LockPersonality=yes
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MemoryDenyWriteExecute=yes
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RestrictRealtime=yes
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RestrictSUIDSGID=yes
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PrivateMounts=yes
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ProtectControlGroups=yes
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ProtectKernelModules=yes
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ProtectKernelTunables=yes
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ProtectSystem=strict
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ProtectHome=yes
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ReadWritePaths=/etc/step-ca/db
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; Read only paths
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ReadOnlyPaths=/etc/step-ca
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[Install]
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WantedBy=multi-user.target
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EOF
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systemctl enable -q --now step-ca
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$STD systemctl enable -q --now step-ca
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msg_ok "Started step-ca as a Daemon"
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msg_info "Install root CA certificate into system's default trust store"
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$STD step certificate install --all $(step path)/certs/root_ca.crt
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$STD update-ca-certificates
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msg_ok "Installed root CA certificate into system's default trust store"
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msg_info "Install step-batcher to export step-ca badger database"
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StepBadgerGitHUB="https://github.com/lukasz-lobocki/step-badger/releases/latest/download"
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StepBadgerArchive="step-badger_Linux_x86_64.tar.gz"
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StepBadgerDir="$STEPHOME/step-badger"
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StepBadgerExe="$StepBadgerDir/step-badger"
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StepBadgerX509Certs="$STEPHOME/step-badger-x509Certs.sh"
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StepBadgerSshCerts="$STEPHOME/step-badger-sshCerts.sh"
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mkdir -p $StepBadgerDir
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$STD curl -fsSL "$StepBadgerGitHUB/$StepBadgerArchive" >$StepBadgerDir/$StepBadgerArchive
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$STD tar -xf $StepBadgerDir/$StepBadgerArchive -C $StepBadgerDir
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chmod 700 $StepBadgerDir
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chmod 400 $StepBadgerDir/*
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chmod 755 $StepBadgerExe
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cp $StepBadgerExe /usr/local/bin/
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mkdir --parents "$STEPHOME/db-copy/"
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mkdir --parents "$STEPHOME/certs/ca/"
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mkdir --parents "$STEPHOME/certs/ssh/"
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mkdir --parents "$STEPHOME/certs/x509/"
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$STD cat <<'EOF' >$StepBadgerX509Certs
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#!/usr/bin/env bash
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#
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# See: https://github.com/lukasz-lobocki/step-badger
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#
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cp --recursive --force "$(step path)/db/"* "$STEPHOME/db-copy/"
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cp --recursive --force "$(step path)/certs/"* "$STEPHOME/certs/ca/"
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step-badger x509Certs "$STEPHOME/db-copy" \
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--dnsnames \
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--emailaddresses \
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--ipaddresses \
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--uris \
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--issuer \
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--crl \
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--provisioner \
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--algorithm
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EOF
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$STD cat <<'EOF' >$StepBadgerSshCerts
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#!/usr/bin/env bash
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#
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# See: https://github.com/lukasz-lobocki/step-badger
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#
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cp --recursive --force "$(step path)/db/"* "$STEPHOME/db-copy/"
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cp --recursive --force "$(step path)/certs/"* "$STEPHOME/certs/ca/"
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step-badger sshCerts "$STEPHOME/db-copy" \
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--algorithm
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EOF
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chmod 700 $StepBadgerX509Certs
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chmod 700 $StepBadgerSshCerts
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msg_ok "Installed step-batcher to export step-ca badger database"
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msg_info "Install step-ca helper scripts"
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StepRequest="$STEPHOME/step-ca-request.sh"
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StepRevoke="$STEPHOME/step-ca-revoke.sh"
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$STD cat <<'EOF' >$StepRequest
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#!/usr/bin/env bash
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#
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StepCertDir="$STEPHOME/certs/x509"
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HOST="brw4cd5770e36b4"
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IP="192.168.178.136"
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DOMAIN="fritz.box"
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FQDN=$HOST.$DOMAIN
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VALID_TO="2034-01-31T00:00:00Z"
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PROVISIONER="pki@fritz.box"
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step ca certificate $FQDN $StepCertDir/$FQDN.crt $StepCertDir/$FQDN.key \
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--provisioner=$PROVISIONER \
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--not-after=$VALID_TO \
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--san $FQDN \
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--san $HOST \
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--san $IP
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step certificate inspect $StepCertDir/$FQDN.crt
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EOF
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$STD cat <<'EOF' >$StepRevoke
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#!/usr/bin/env bash
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#
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# step ca revoke <serialnumber>
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#
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step ca revoke
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EOF
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chmod 700 $StepRequest
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chmod 700 $StepRevoke
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msg_ok "Installed step-ca helper scripts"
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motd_ssh
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customize
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cleanup_lxc
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