Initial commit of skiff scaffolding

5 files changed, 107 insertions, 0 deletions

diff --git a/internal/tmpl/jail.conf.tmpl b/internal/tmpl/jail.conf.tmpl
new file mode 100644
index 0000000..446c8c8
--- /dev/null
+++ b/internal/tmpl/jail.conf.tmpl
@@ -0,0 +1,10 @@
+{{.Name}} {
+	path = "{{.JailRoot}}";
+	host.hostname = "{{.Name}}.skiff.local";
+	ip4.addr = "{{.IP}}";
+	exec.start = "/bin/sh /etc/rc";
+	exec.stop = "/bin/sh /etc/rc.shutdown";
+	exec.clean;
+	mount.devfs;
+	persist;
+}
diff --git a/internal/tmpl/nginx-app.conf.tmpl b/internal/tmpl/nginx-app.conf.tmpl
new file mode 100644
index 0000000..b55a332
--- /dev/null
+++ b/internal/tmpl/nginx-app.conf.tmpl
@@ -0,0 +1,15 @@
+upstream {{.Name}}_upstream {
+	server {{.IP}}:{{.Port}};
+}
+
+server {
+	listen 80;
+	server_name {{.ServerName}};
+
+	location / {
+		proxy_pass http://{{.Name}}_upstream;
+		proxy_set_header Host $host;
+		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+		proxy_set_header X-Forwarded-Proto $scheme;
+	}
+}
diff --git a/internal/tmpl/post-receive.tmpl b/internal/tmpl/post-receive.tmpl
new file mode 100644
index 0000000..b06d46e
--- /dev/null
+++ b/internal/tmpl/post-receive.tmpl
@@ -0,0 +1,6 @@
+#!/bin/sh
+# Installed by `skiff new-app {{.Name}}`. Do not edit by hand - re-run
+# new-app (or hand-edit the app name below) if this repo is ever renamed.
+while read old new ref; do
+	skiff deploy --app "{{.Name}}" --old "$old" --new "$new" --ref "$ref" || exit 1
+done
diff --git a/internal/tmpl/rc.d.tmpl b/internal/tmpl/rc.d.tmpl
new file mode 100644
index 0000000..db940fd
--- /dev/null
+++ b/internal/tmpl/rc.d.tmpl
@@ -0,0 +1,17 @@
+#!/bin/sh
+#
+# PROVIDE: {{.Name}}
+# REQUIRE: LOGIN
+# KEYWORD: shutdown
+
+. /etc/rc.subr
+
+name="{{.Name}}"
+rcvar="{{.Name}}_enable"
+
+pidfile="/var/run/${name}.pid"
+command="/usr/sbin/daemon"
+command_args="-P ${pidfile} -r -t {{.Name}} /app/current/app"
+
+load_rc_config $name
+run_rc_command "$1"
diff --git a/internal/tmpl/tmpl.go b/internal/tmpl/tmpl.go
new file mode 100644
index 0000000..68e917d
--- /dev/null
+++ b/internal/tmpl/tmpl.go
@@ -0,0 +1,59 @@
+// Package tmpl embeds every file Skiff writes out to the host - jail
+// config, rc.d script, nginx vhost, git hook - so the whole tool ships as
+// one binary with nothing extra to install alongside it.
+package tmpl
+
+import (
+	"bytes"
+	_ "embed"
+	"text/template"
+)
+
+//go:embed jail.conf.tmpl
+var jailConf string
+
+//go:embed rc.d.tmpl
+var rcScript string
+
+//go:embed nginx-app.conf.tmpl
+var nginxApp string
+
+//go:embed post-receive.tmpl
+var postReceive string
+
+func Render(text string, data any) (string, error) {
+	t, err := template.New("t").Parse(text)
+	if err != nil {
+		return "", err
+	}
+	var buf bytes.Buffer
+	if err := t.Execute(&buf, data); err != nil {
+		return "", err
+	}
+	return buf.String(), nil
+}
+
+type JailConfData struct {
+	Name     string
+	JailRoot string
+	IP       string
+}
+
+func JailConf(d JailConfData) (string, error) { return Render(jailConf, d) }
+
+type RCData struct{ Name string }
+
+func RCScript(d RCData) (string, error) { return Render(rcScript, d) }
+
+type NginxAppData struct {
+	Name       string
+	IP         string
+	Port       int
+	ServerName string
+}
+
+func NginxApp(d NginxAppData) (string, error) { return Render(nginxApp, d) }
+
+type PostReceiveData struct{ Name string }
+
+func PostReceive(d PostReceiveData) (string, error) { return Render(postReceive, d) }