Add mail

hashbang · Jun 5, 2020 · 3c75064 · 3c75064
1 parent 6217d67
commit 3c75064
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diff --git a/argocd/applications/mail.yaml b/argocd/applications/mail.yaml
@@ -0,0 +1,13 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: mail
+spec:
+  project: default
+  source:
+    repoURL: [email protected]:hashbang/gitops.git
+    path: mail/
+    targetRevision: HEAD
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: mail
diff --git a/argocd/kustomization.yaml b/argocd/kustomization.yaml
@@ -18,6 +18,7 @@ resources:
   - applications/external-dns.yaml
   - applications/ingress-nginx.yaml
   - applications/ircd.yaml
+  - applications/mail.yaml
   - applications/monitoring.yaml
   - applications/userdb-api.yaml
   - applications/webirc.yaml

diff --git a/cert-manager-issuers/prod_issuer.yaml b/cert-manager-issuers/prod_issuer.yaml
@@ -15,6 +15,7 @@ spec:
     - selector:
         dnsZones:
           - "irc.hashbang.sh"
+          - "mail.hashbang.sh"
       dns01:
         route53:
           region: us-west-2

diff --git a/mail/README.md b/mail/README.md
@@ -0,0 +1,5 @@
+# Mail
+
+https://github.com/hashbang/docker-postfix
+
+Delivers mail to the shell servers
diff --git a/mail/aliases.enc.yaml b/mail/aliases.enc.yaml
@@ -0,0 +1,133 @@
+apiVersion: v1
+kind: Secret
+metadata:
+    name: mail-aliases
+type: Opaque
+stringData:
+    aliases: ENC[AES256_GCM,data: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,iv:YhRtkz4oL8wqN3W+CQyhwGwhNYKsmEQvga62wzc+gBI=,tag:9rkZ3caaI915ykCFchdxpA==,type:str]
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diff --git a/mail/certificate.yaml b/mail/certificate.yaml
@@ -0,0 +1,12 @@
+apiVersion: cert-manager.io/v1alpha2
+kind: Certificate
+metadata:
+  namespace: mail
+  name: mail.hashbang.sh
+spec:
+  secretName: mail-certs
+  dnsNames:
+  - mail.hashbang.sh
+  issuerRef:
+    name: letsencrypt-prod
+    kind: ClusterIssuer
diff --git a/mail/files/main.cf b/mail/files/main.cf
@@ -0,0 +1,49 @@
+smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
+biff = no
+
+# appending .domain is the MUA's job.
+append_dot_mydomain = no
+
+# Uncomment the next line to generate "delayed mail" warnings
+#delay_warning_time = 4h
+
+readme_directory = no
+
+# TLS parameters
+smtpd_tls_cert_file = /etc/postfix/certs/server.crt
+smtpd_tls_key_file = /etc/postfix/certs/server.key
+smtpd_use_tls=yes
+smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
+smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
+# smtpd_tls_CAfile = /etc/postfix/certs/cacert.pem
+smtpd_tls_security_level = may
+smtpd_tls_auth_only = no
+smtpd_tls_loglevel = 1
+smtpd_tls_received_header = yes
+smtpd_tls_session_cache_timeout = 3600s
+smtp_tls_security_level = dane
+smtp_tls_note_starttls_offer = yes
+smtp_dns_support_level = dnssec
+
+# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
+# information on enabling SSL in the smtp client.
+
+smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
+
+myhostname = mail.hashbang.sh
+relay_domains = hashbang.sh
+mydestination = mail.hashbang.sh, hashbang.sh, localhost.hashbang.sh, localhost
+mynetworks = 127.0.0.0/8 46.4.114.111
+relayhost =
+alias_maps = hash:/etc/aliases
+alias_database = hash:/etc/aliases
+myorigin = $mydomain
+mailbox_size_limit = 0
+recipient_delimiter = +
+inet_interfaces = all
+
+virtual_alias_maps = pgsql:/etc/postfix/userdb-aliases.cf
+
+message_size_limit = 52428800
+
+compatibility_level = 2
diff --git a/mail/files/userdb-aliases.cf b/mail/files/userdb-aliases.cf
@@ -0,0 +1,4 @@
+domain = hashbang.sh
+hosts = postgresql://mail:userdb-mail-lookup@userdb-attempt-too-do-user-989073-0.db.ondigitalocean.com:25060/userdb?sslmode=require
+dbname = userdb
+query = select name || '@' || host from passwd where name = '%u'
diff --git a/mail/kustomization.yaml b/mail/kustomization.yaml
@@ -0,0 +1,22 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: mail
+resources:
+- namespace.yaml
+- resources.yaml
+- certificate.yaml
+configMapGenerator:
+- name: mail-config
+  options:
+    disableNameSuffixHash: true
+  files:
+  - files/main.cf
+  - files/userdb-aliases.cf
+generators:
+- secret-generator.yaml
+images:
+- name: hashbang/postfix
+  digest: sha256:1c9491593e383b95cde6c75a82abcfe2e12e4a26b1656abeaac0bf1f8209b9ee
+- name: alpine
+  newTag: alpine:3.12.0
+  digest: sha256:a15790640a6690aa1730c38cf0a440e2aa44aaca9b0e8931a9f2b0d7cc90fd65
diff --git a/mail/namespace.yaml b/mail/namespace.yaml
@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: mail
diff --git a/mail/resources.yaml b/mail/resources.yaml
@@ -0,0 +1,109 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mail
+spec:
+  selector:
+    matchLabels:
+      app: mail
+  template:
+    metadata:
+      labels:
+        app: mail
+    spec:
+      shareProcessNamespace: true
+      containers:
+      - name: postfix
+        image: hashbang/postfix
+        ports:
+        - containerPort: 25
+          name: smtp
+        readinessProbe:
+          tcpSocket:
+            port: 25
+        livenessProbe:
+          tcpSocket:
+            port: 25
+        volumeMounts:
+        - mountPath: /etc/postfix
+          name: mail-config
+          readOnly: true
+        - mountPath: /etc/postfix/aliases
+          name: mail-aliases
+          subPath: aliases
+          readOnly: true
+        - mountPath: /etc/tls
+          name: mail-certs
+          readOnly: true
+        - mountPath: /var/spool/postfix
+          name: mail-spool
+      - name: config-reloader
+        # image includes busybox's inotifyd + pkill
+        image: alpine
+        command: ["/bin/sh"]
+        args:
+          - "-c"
+          - |
+            echo "Watching /etc/postfix";
+            inotifyd - /etc/postfix/:wMymndox /etc/postfix/aliases:wMymndox /etc/postfix/tls/:wMymndox | while read -r notifies ; do
+              echo "notify received: $notifies";
+              echo "running newaliases";
+              newaliases;
+              echo "sending SIGHUP";
+              pkill -HUP master;
+            done
+            echo "Exiting.";
+        volumeMounts:
+        - mountPath: /etc/postfix
+          name: mail-config
+          readOnly: true
+        - mountPath: /etc/postfix/aliases
+          name: mail-aliases
+          subPath: aliases
+          readOnly: true
+        - mountPath: /etc/tls
+          name: mail-certs
+          readOnly: true
+      volumes:
+      - name: mail-config
+        configMap:
+          name: mail-config
+      - name: mail-aliases
+        secret:
+          secretName: mail-aliases
+      - name: mail-certs
+        secret:
+          secretName: mail-certs
+      - name: mail-spool
+        persistentVolumeClaim:
+          claimName: mail-spool
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mail
+  labels:
+    app: mail
+  annotations:
+    external-dns.alpha.kubernetes.io/hostname: "mail.hashbang.sh"
+spec:
+  type: NodePort
+  ports:
+  - name: smtp
+    port: 25
+    targetPort: 25
+  selector:
+    app: mail
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mail-spool
+  labels:
+    app: mail
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
diff --git a/mail/secret-generator.yaml b/mail/secret-generator.yaml
@@ -0,0 +1,6 @@
+apiVersion: viaduct.ai/v1
+kind: ksops
+metadata:
+  name: mail-secrets
+files:
+  - ./aliases.enc.yaml