Merge pull request #254 from Mailu/feature-traefik
Switch to traefik for proxying and querying letsencryptmaster
kaiyou
8 years ago
committed by
GitHub
commit
829e4a5e28
@ -1,71 +0,0 @@
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from mailu import app, scheduler, dockercli
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import subprocess
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import os
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def certbot_command(subcommand, *args):
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""" Run a certbot command while specifying the standard parameters.
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"""
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command = [
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"certbot", subcommand,
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"-n",
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"--work-dir", "/tmp",
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"--logs-dir", "/tmp",
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"--config-dir", app.config["CERTS_PATH"],
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*args
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]
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result = subprocess.run(command, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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return result
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def certbot_install(domain):
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""" Install certificates for the given domain. Return True if a reload
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is required.
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"""
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must_reload = False
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path = app.config["CERTS_PATH"]
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cert = os.path.join(path, "cert.pem")
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key = os.path.join(path, "key.pem")
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live_cert = os.path.join("live", domain, "fullchain.pem")
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live_key = os.path.join("live", domain, "privkey.pem")
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if not os.path.islink(cert) or os.readlink(cert) != live_cert:
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must_reload = True
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if os.path.exists(cert):
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os.unlink(cert)
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os.symlink(live_cert, cert)
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if not os.path.islink(key) or os.readlink(key) != live_key:
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must_reload = True
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if os.path.exists(key):
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os.unlink(key)
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os.symlink(live_key, key)
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return must_reload
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@scheduler.scheduled_job('date')
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@scheduler.scheduled_job('cron', day='*/4', hour=0, minute=0)
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def generate_cert():
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print("Generating TLS certificates using Certbot")
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hostname = app.config["HOSTNAME"]
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email = "{}@{}".format(app.config["POSTMASTER"], app.config["DOMAIN"])
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result = certbot_command(
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"certonly",
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"--standalone",
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"--agree-tos",
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"--preferred-challenges", "http",
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"--email", email,
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"-d", hostname,
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# The port is hardcoded in the nginx image as well, we should find
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# a more suitable way to go but this will do until we have a proper
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# daemon handling certbot stuff
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"--http-01-port", "8081"
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)
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if result.returncode:
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print("Error while generating certificates:\n{}".format(
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result.stdout.decode("utf8") + result.stderr.decode("utf8")))
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else:
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print("Successfully generated or renewed TLS certificates")
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if certbot_install(hostname):
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print("Reloading TLS-dependant services")
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dockercli.reload("http", "smtp", "imap")
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@ -0,0 +1,68 @@
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from mailu import app, scheduler, dockercli
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import urllib3
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import json
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import os
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import base64
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import subprocess
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def install_certs(domain):
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""" Extract certificates from the given domain and install them
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to the certificate path.
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"""
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path = app.config["CERTS_PATH"]
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acme_path = os.path.join(path, "acme.json")
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key_path = os.path.join(path, "key.pem")
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cert_path = os.path.join(path, "cert.pem")
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if not os.path.exists(acme_path):
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print("Could not find traefik acme configuration")
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return
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with open(acme_path, "r") as handler:
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data = json.loads(handler.read())
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for item in data["DomainsCertificate"]["Certs"]:
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if domain == item["Domains"]["Main"]:
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cert = base64.b64decode(item["Certificate"]["Certificate"])
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key = base64.b64decode(item["Certificate"]["PrivateKey"])
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break
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else:
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print("Could not find the proper certificate from traefik")
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return
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if os.path.exists(cert_path):
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with open(cert_path, "rb") as handler:
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if handler.read() == cert:
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return
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print("Installing the new certificate from traefik")
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with open(cert_path, "wb") as handler:
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handler.write(cert)
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with open(key_path, "wb") as handler:
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handler.write(key)
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def restart_services():
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print("Reloading services using TLS")
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dockercli.reload("http", "smtp", "imap")
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@scheduler.scheduled_job('date')
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def create_dhparam():
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path = app.config["CERTS_PATH"]
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dhparam_path = os.path.join(path, "dhparam.pem")
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if not os.path.exists(dhparam_path):
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print("Creating DH params")
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subprocess.call(["openssl", "dhparam", "-out", dhparam_path, "2048"])
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restart_services()
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@scheduler.scheduled_job('date')
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@scheduler.scheduled_job('cron', day='*/4', hour=0, minute=0)
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def refresh_certs():
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if not app.config["TLS_FLAVOR"] == "letsencrypt":
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return
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if not app.config["FRONTEND"] == "traefik":
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print("Letsencrypt certificates are compatible with traefik only")
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return
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print("Requesting traefik to make sure the certificate is fresh")
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hostname = app.config["HOSTNAME"]
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urllib3.PoolManager().request("GET", "https://{}".format(hostname))
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install_certs(hostname)
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@ -0,0 +1,8 @@
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FROM traefik:alpine
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RUN apk add --no-cache bash
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COPY conf /conf
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COPY start.sh /start.sh
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CMD /start.sh
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@ -0,0 +1,31 @@
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defaultEntryPoints = ["http", "https"]
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logLevel = "ERROR"
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accessLogsFile = "/dev/stdout"
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[entryPoints]
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[entryPoints.http]
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address = ":80"
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[entryPoints.http.redirect]
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entryPoint = "https"
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[entryPoints.https]
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address = ":443"
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[entryPoints.https.tls]
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MinVersion = "VersionTLS11"
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CipherSuites = ["TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384", "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA", "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"]
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[[entryPoints.https.tls.certificates]]
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CertFile = "/certs/cert.pem"
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KeyFile = "/certs/key.pem"
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[docker]
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endpoint = "unix:///docker.sock"
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domain = "{{ DOMAIN }}"
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watch = true
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exposedbydefault = false
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[acme]
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email = "{{ POSTMASTER }}@{{ DOMAIN }}"
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storageFile = "/certs/acme.json"
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onDemand = true
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entryPoint = "https"
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@ -0,0 +1,28 @@
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defaultEntryPoints = ["http", "https"]
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logLevel = "ERROR"
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accessLogsFile = "/dev/stdout"
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[entryPoints]
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[entryPoints.http]
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address = ":80"
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[entryPoints.http.redirect]
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entryPoint = "https"
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[entryPoints.https]
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address = ":443"
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[entryPoints.https.tls]
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MinVersion = "VersionTLS11"
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CipherSuites = ["TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384", "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA", "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"]
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[docker]
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endpoint = "unix:///docker.sock"
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domain = "{{ DOMAIN }}"
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watch = true
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exposedbydefault = false
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[acme]
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email = "{{ POSTMASTER }}@{{ DOMAIN }}"
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storageFile = "/certs/acme.json"
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onDemand = true
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entryPoint = "https"
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@ -0,0 +1,14 @@
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defaultEntryPoints = ["http"]
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logLevel = "ERROR"
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accessLogsFile = "/dev/stdout"
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[entryPoints]
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[entryPoints.http]
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address = ":80"
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[docker]
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endpoint = "unix:///docker.sock"
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domain = "{{ DOMAIN }}"
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watch = true
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exposedbydefault = false
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@ -0,0 +1,12 @@
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#!/bin/bash
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# Substitute configuration
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for VARIABLE in `env | cut -f1 -d=`; do
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sed -i "s={{ $VARIABLE }}=${!VARIABLE}=g" /conf/*.toml
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done
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# Select the proper configuration
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cp /conf/$TLS_FLAVOR.toml /conf/traefik.toml
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exec traefik -c /conf/traefik.toml
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