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(use-modules (gnu)
(gnu packages version-control)
(gnu services certbot)
(gnu services cgit)
(gnu services networking)
(gnu services ssh)
(gnu services version-control)
(gnu services web))
(define letsencrypt-cert
"/etc/letsencrypt/live/dthompson.us/fullchain.pem")
(define letsencrypt-cert-key
"/etc/letsencrypt/live/dthompson.us/privkey.pem")
(define dave-pub-key (local-file "keys/dave.pub"))
(define git-root "/var/lib/gitolite")
(define fcgiwrap-socket "127.0.0.1:9000")
(define nginx-accounts
(list (user-group (name "nginx") (system? #t))
(user-account
(name "nginx")
(group "nginx")
(supplementary-groups '("git"))
(system? #t)
(comment "nginx server user")
(home-directory "/var/empty")
(shell (file-append (specification->package "shadow")
"/sbin/nologin")))))
;; Need to override the default nginx service account configuration so
;; that the nginx user is a member of the git group.
(define nginx-service-type*
(service-type
(inherit nginx-service-type)
(extensions
(map (lambda (extension)
(if (eq? (service-extension-target extension)
account-service-type)
(service-extension account-service-type
(const nginx-accounts))
extension))
(service-type-extensions nginx-service-type)))))
(define takemi-os
(operating-system
(locale "en_US.utf8")
(timezone "America/New_York")
(keyboard-layout (keyboard-layout "us"))
(host-name "takemi")
(users (cons* (user-account
(name "dave")
(comment "David Thompson")
(group "users")
(home-directory "/home/dave")
(supplementary-groups
'("wheel" "netdev")))
(user-account
(name "publish")
(comment "Web file publisher")
(group "publish")
(home-directory "/var/www")
(system? #t)
(create-home-directory? #f))
%base-user-accounts))
(groups (cons* (user-group
(name "publish")
(system? #t))
%base-groups))
(sudoers-file
(plain-file "sudoers"
(string-append (plain-file-content %sudoers-specification)
;; 'guix deploy' requires no password
;; sudo capability.
"dave ALL = NOPASSWD: ALL\n")))
(packages
(append (map specification->package '("emacs" "nss-certs" "rsync"))
%base-packages))
(services
(append
(list (service dhcp-client-service-type)
(service openssh-service-type
(openssh-configuration
(password-authentication? #f)
;; So I can forward ports from my local host to
;; the server and have the ports accessible from
;; the internet.
(gateway-ports? #t)
(authorized-keys
`(("dave" ,dave-pub-key)
("publish" ,dave-pub-key)))))
(service gitolite-service-type
(gitolite-configuration
(admin-pubkey dave-pub-key)
(rc-file (gitolite-rc-file
;; Grant read access to git group so
;; cgit will work.
(umask #o0027)
(git-config-keys "gitweb\\..*")))))
(service (service-type
(inherit certbot-service-type)
(extensions
;; Replace original nginx-service-type with
;; our modified one.
(map (lambda (extension)
(if (eq? (service-extension-target extension)
nginx-service-type)
(service-extension nginx-service-type*
(@@ (gnu services certbot)
certbot-nginx-server-configurations))
extension))
(service-type-extensions certbot-service-type))))
(certbot-configuration
(email "dthompson2@worcester.edu")
(certificates
(list
(certificate-configuration
(domains '("dthompson.us"
"www.dthompson.us"
"git.dthompson.us"
"files.dthompson.us"
"haunt.dthompson.us"))
;; Send SIGHUP signal to nginx to trigger a
;; configuration reload, thus loading the
;; updated certificates.
(deploy-hook (program-file
"nginx-deploy-hook"
#~(let ((pid (call-with-input-file
"/var/run/nginx/pid"
read)))
(kill pid SIGHUP)))))))
(webroot "/var/www/certbot")))
(service nginx-service-type*
(nginx-configuration
(server-blocks
(list (nginx-server-configuration
(listen '("443 ssl"))
(server-name '("www.dthompson.us"))
(root "/var/www/blog")
(ssl-certificate letsencrypt-cert)
(ssl-certificate-key letsencrypt-cert-key))
(nginx-server-configuration
(listen '("443 ssl"))
(server-name '("files.dthompson.us"))
(root "/var/www/files")
(raw-content '("autoindex on;"))
(ssl-certificate letsencrypt-cert)
(ssl-certificate-key letsencrypt-cert-key))
;; I used to have the Haunt website under
;; its own subdomain, and some sites still
;; point to it.
(nginx-server-configuration
(listen '("443 ssl"))
(server-name '("haunt.dthompson.us"))
(root "/var/www/haunt")
(locations
(list
(nginx-location-configuration
(uri "/")
(body '("rewrite .* https://dthompson.us/projects/haunt.html permanent;")))))
(ssl-certificate letsencrypt-cert)
(ssl-certificate-key letsencrypt-cert-key))))))
(service fcgiwrap-service-type
(fcgiwrap-configuration
;; Use git group for read-only access to gitolite
;; repos.
(group "git")
(socket (string-append "tcp:" fcgiwrap-socket))))
(let ((cgit (specification->package "cgit")))
(service (service-type
(inherit cgit-service-type)
(extensions
;; Replace original nginx-service-type with
;; our modified one.
(map (lambda (extension)
(if (eq? (service-extension-target extension)
nginx-service-type)
(service-extension nginx-service-type*
cgit-configuration-nginx-config)
extension))
(service-type-extensions cgit-service-type))))
(cgit-configuration
(project-list (string-append git-root "/projects.list"))
(repository-directory (string-append git-root "/repositories"))
(root-desc "all i wanted was a pepsi") ; just one pepsi
(enable-git-config? #t)
;; Cgit only supports the old HTTP "dumb"
;; protocol, which notably libgit2 won't even
;; entertain supporting. So, we'll disable
;; that and use Git itself to provide the HTTP
;; "smart" protocol instead.
(enable-http-clone? #f)
(enable-index-links? #t)
(enable-index-owner? #f)
(enable-commit-graph? #t)
(enable-log-filecount? #t)
(enable-log-linecount? #t)
(remove-suffix? #t)
(clone-url '("https://git.dthompson.us/$CGIT_REPO_URL.git"))
;; Is there a way to avoid this wrapper script?
(source-filter (program-file
"cgit-syntax-highlight"
#~(apply execl
(string-append #$cgit "/lib/cgit/filters/syntax-highlighting.py")
(command-line))))
(nginx
(list (nginx-server-configuration
(listen '("443 ssl"))
(server-name '("git.dthompson.us"))
(root cgit)
(locations
(list
;; URI paths with .git are handled by
;; Git's "smart" HTTP protocol.
(nginx-location-configuration
(uri "~ (/.*\\.git.*)")
(body
`(("fastcgi_pass " ,fcgiwrap-socket ";")
("fastcgi_param SCRIPT_FILENAME "
,git "/libexec/git-core/git-http-backend;")
"fastcgi_param QUERY_STRING $query_string;"
"fastcgi_param REQUEST_METHOD $request_method;"
"fastcgi_param CONTENT_TYPE $content_type;"
"fastcgi_param CONTENT_LENGTH $content_length;"
("fastcgi_param GIT_PROJECT_ROOT "
,git-root "/repositories;")
"fastcgi_param PATH_INFO $1;")))
;; Redirect old URLs to .git pages to
;; the new .git-less URL. This
;; doesn't handle deeper links but
;; that's okay.
(nginx-location-configuration
(uri "~ (/.*)\\.git")
(body
`("return 301 $1;")))
;; Serve a static file if one exists,
;; otherwise send the request to
;; cgit.
(nginx-location-configuration
(uri "/")
(body
'("try_files $uri @cgit;")))
(nginx-location-configuration
(uri "@cgit")
(body `("fastcgi_param SCRIPT_FILENAME $document_root/lib/cgit/cgit.cgi;"
"fastcgi_param PATH_INFO $uri;"
"fastcgi_param QUERY_STRING $args;"
"fastcgi_param HTTP_HOST $server_name;"
("fastcgi_pass " ,fcgiwrap-socket ";"))))))
(ssl-certificate letsencrypt-cert)
(ssl-certificate-key letsencrypt-cert-key))))))))
(map (lambda (s)
(if (eq? (service-kind s) guix-service-type)
(service guix-service-type
(guix-configuration
(authorized-keys (cons (local-file "keys/signing-key.pub")
%default-authorized-guix-keys))))
s))
%base-services)))
(bootloader
(bootloader-configuration
(bootloader grub-bootloader)
(targets '("/dev/vda"))
(keyboard-layout keyboard-layout)))
(initrd-modules
(append '("virtio_scsi") %base-initrd-modules))
(swap-devices (list "/dev/vda2"))
(file-systems
(cons* (file-system
(mount-point "/")
(device
(uuid "f99d3ff5-57ea-4b20-bca7-bc2d58b4c364"
'ext4))
(type "ext4"))
%base-file-systems))))
(define takemi-host-key
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOrptBAMgs8dGDerBkcmZQ2W/0nEXtOBCl8nLlEwjKdI")
(list (machine
(operating-system takemi-os)
(environment managed-host-environment-type)
(configuration (machine-ssh-configuration
(host-name "dthompson.us")
(system "x86_64-linux")
(user "dave")
(host-key takemi-host-key)))))
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