Add env sample

.env.sample

@@ -0,0 +1,37 @@
+TYPE=alerta
+STACK_NAME=alerta
+
+DOMAIN=alerta.autonomic.zone
+LETS_ENCRYPT_ENV=production
+
+ADMIN_USERS="decentral1se"
+
+OAUTH2_CLIENT_ID=alerta-internal
+KEYCLOAK_REALM=autonomic
+KEYCLOAK_ROLE=worker-owner
+KEYCLOAK_URL=https://id.autonomic.zone
+
+MAIL_FROM=noreply@autonomic.zone
+MAIL_TO=kaboom@autonomic.zone
+
+ROCKET_CHAT_ALERTA_USERNAME=alerta
+ROCKET_CHAT_CHANNEL="internal.kaboom"
+ROCKET_CHAT_ICON_EMOJI=":rocket:"
+
+SMTP_HOST=mail.gandi.net
+SMTP_PORT=587
+SMTP_STARTTLS=True
+SMTP_USERNAME=noreply
+
+ALERTAD_CONF_VERSION=v1
+ALERTA_CONF_VERSION=v1
+CONFIG_JSON_VERSION=v1
+EMAIL_TMPL_VERSION=v1
+
+SECRET_DB_ROOT_PASSWORD_VERSION=v1
+SECRET_CLI_API_KEY_VERSION=v1
+SECRET_MAILER_API_KEY_VERSION=v1
+SECRET_SMTP_PASSWORD_VERSION=v1
+SECRET_SECRET_KEY_VERSION=v1
+SECRET_OAUTH_CLIENT_SECRET_VERSION=v1
+SECRET_ROCKET_CHAT_WEBHOOK_URL=v1