add infoblox dns provider support

infra-templates/infoblox/0/README.md

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+## Infoblox DNS
+
+Rancher External DNS service powered by Infoblox DNS
+
+#### Usage
+
+##### Supported host labels
+
+`io.rancher.host.external_dns_ip`
+Override the IP address used in DNS records for containers running on the host. Defaults to the IP address the host is registered with in Rancher.
+
+`io.rancher.host.external_dns`
+Accepts 'true' (default) or 'false'
+When this is set to 'false' no DNS records will ever be created for containers running on this host.
+
+##### Supported service labels
+
+`io.rancher.service.external_dns`
+Accepts 'always', 'never' or 'auto' (default)
+- `always`: Always create DNS records for this service
+- `never`: Never create DNS records for this service
+- `auto`: Create DNS records for this service if it exposes ports on the host
+
+`io.rancher.service.external_dns_name_template`
+Custom DNS name template that overrides global custom DNS name template (see below) of default DNS name template for a specific service
+
+##### Custom DNS name template
+
+By default DNS entries are named `<service>.<stack>.<environment>.<domain>`.
+You can specify a custom name template used to construct the subdomain part (left of the domain/zone name) of the DNS records. The following placeholders are supported:
+
+* `%{{service_name}}`
+* `%{{stack_name}}`
+* `%{{environment_name}}`
+
+**Example:**
+
+`%{{stack_name}}-%{{service_name}}.statictext`
+
+Make sure to only use characters in static text and separators that your provider allows in DNS names.

infra-templates/infoblox/0/docker-compose.yml

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+infoblox:
+  image: rancher/external-dns:v0.7.5
+  command: -provider=infoblox
+  expose:
+   - 1000
+  environment:
+    INFOBLOX_URL: ${INFOBLOX_URL}
+    INFOBLOX_USER_NAME: ${INFOBLOX_USER_NAME}
+    INFOBLOX_PASSWORD: ${INFOBLOX_PASSWORD}
+    ROOT_DOMAIN: ${ROOT_DOMAIN}
+    SSL_VERIFY: ${SSL_VERIFY}
+    USE_COOKIES: ${USE_COOKIES}
+    TTL: ${TTL}
+  labels:
+    io.rancher.container.create_agent: "true"
+    io.rancher.container.agent.role: "external-dns"

infra-templates/infoblox/0/rancher-compose.yml

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+# notemplating
+.catalog:
+  name: "Infoblox DNS"
+  version: "v0.1.0"
+  description: "Rancher External DNS service powered by Infoblox"
+  minimum_rancher_version: v1.6.0
+  questions:
+    - variable: "INFOBLOX_URL"
+      label: "Infoblox url"
+      description: "Infoblox url for your Infoblox service"
+      type: "string"
+      required: true
+    - variable: "INFOBLOX_USER_NAME"
+      label: "Infoblox user name"
+      description: "Infoblox user name for your Infoblox service"
+      type: "string"
+      required: true
+    - variable: "INFOBLOX_PASSWORD"
+      label: "Infoblox password"
+      description: "Infoblox password for your Infoblox service"
+      type: "string"
+      required: true
+    - variable: "SSL_VERIFY"
+      label: "Ssl verify"
+      description: "Infoblox Ssl verify for your Infoblox service"
+      type: "boolean"
+      required: true
+    - variable: "USE_COOKIES"
+      label: "Use cookies"
+      description: "Uses cookies if specified, re-creating the request and falling back to basic auth if a cookie is not present"
+      type: "boolean"
+      required: true
+    - variable: "ROOT_DOMAIN"
+      label: "Domain"
+      description: "The DNS zone name (root domain) managed by Infoblox. DNS entries will be created for <service>.<stack>.<environment>.<domain>"
+      type: "string"
+      required: true
+    - variable: "TTL"
+      label: "TTL"
+      description: "The resource record cache time to live (TTL), in seconds"
+      type: "int"
+      default: 600
+      min: 1
+      max: 86400
+      required: false
+    - variable: "NAME_TEMPLATE"
+      label: "DNS Name Template"
+      description: |
+        Name template used to construct the subdomain part (left of the domain) of the DNS record names.
+        Supported placeholders: %{{service_name}}, %{{stack_name}}, %{{environment_name}}.
+        By default DNS entries will be named '<service>.<stack>.<environment>.<domain>'.
+      type: "string"
+      default: "%{{service_name}}.%{{stack_name}}.%{{environment_name}}"
+      required: false
+
+infoblox:
+  health_check:
+    port: 1000
+    interval: 5000
+    unhealthy_threshold: 3
+    request_line: GET / HTTP/1.0
+    healthy_threshold: 2
+    response_timeout: 2000

infra-templates/infoblox/config.yml

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+name: Infoblox DNS
+description: |
+  Rancher External DNS service powered by Infoblox
+version:  v0.1.0
+category: External DNS
+labels:
+  io.rancher.orchestration.supported: 'cattle,mesos,swarm,kubernetes'