https redirect config block

[PietroPasotti]

adds config block implementing root-level https redirect

Fixes #177 (again)

manual test: cos-lite (no tls)

• can curl prometheus: yes
• grafana datasources healthy: NO (TLS bad MAC error)

manual test: cos-lite (+tls)

• can curl prometheus: YES
• grafana datasources healthy: NO (Prometheus: Post "https://192.168.0.105/clite-tls-prometheus-0/api/v1/query": x509: cannot validate certificate for 192.168.0.105 because it doesn't contain any IP SANs)

# NO-TLS bundle
bundle: kubernetes
applications:
  alertmanager:
    charm: alertmanager-k8s
    channel: edge
    revision: 86
    resources:
      alertmanager-image: 75
    scale: 1
    constraints: arch=amd64
    storage:
      data: kubernetes,1,1024M
    trust: true
  catalogue:
    charm: catalogue-k8s
    channel: edge
    revision: 24
    resources:
      catalogue-image: 25
    scale: 1
    options:
      description: "Canonical Observability Stack Lite, or COS Lite, is a light-weight,
        highly-integrated, \nJuju-based observability suite running on Kubernetes.\n"
      tagline: Model-driven Observability Stack deployed with a single command.
      title: Canonical Observability Stack
    constraints: arch=amd64
    trust: true
  grafana:
    charm: grafana-k8s
    channel: edge
    revision: 92
    resources:
      grafana-image: 62
      litestream-image: 42
    scale: 1
    constraints: arch=amd64
    storage:
      database: kubernetes,1,1024M
    trust: true
  loki:
    charm: loki-k8s
    channel: edge
    revision: 97
    resources:
      loki-image: 80
    scale: 1
    constraints: arch=amd64
    storage:
      active-index-directory: kubernetes,1,1024M
      loki-chunks: kubernetes,1,1024M
    trust: true
  prometheus:
    charm: prometheus-k8s
    channel: edge
    revision: 148
    resources:
      prometheus-image: 126
    scale: 1
    constraints: arch=amd64
    storage:
      database: kubernetes,1,1024M
    trust: true
  trfk:
    charm: local:traefik-k8s-0
    scale: 1
    constraints: arch=amd64
    storage:
      configurations: kubernetes,1,1024M
relations:
- - prometheus:alertmanager
  - alertmanager:alerting
- - grafana:grafana-source
  - prometheus:grafana-source
- - grafana:grafana-source
  - loki:grafana-source
- - grafana:grafana-source
  - alertmanager:grafana-source
- - loki:alertmanager
  - alertmanager:alerting
- - prometheus:metrics-endpoint
  - alertmanager:self-metrics-endpoint
- - prometheus:metrics-endpoint
  - loki:metrics-endpoint
- - prometheus:metrics-endpoint
  - grafana:metrics-endpoint
- - grafana:grafana-dashboard
  - loki:grafana-dashboard
- - grafana:grafana-dashboard
  - prometheus:grafana-dashboard
- - grafana:grafana-dashboard
  - alertmanager:grafana-dashboard
- - catalogue:catalogue
  - grafana:catalogue
- - catalogue:catalogue
  - prometheus:catalogue
- - catalogue:catalogue
  - alertmanager:catalogue
- - loki:logging
  - trfk:logging
- - trfk:grafana-dashboard
  - grafana:grafana-dashboard
- - trfk:metrics-endpoint
  - prometheus:metrics-endpoint
- - trfk:ingress
  - alertmanager:ingress
- - trfk:ingress
  - catalogue:ingress
- - trfk:traefik-route
  - grafana:ingress
- - trfk:ingress-per-unit
  - loki:ingress
- - trfk:ingress-per-unit
  - prometheus:ingress

[PietroPasotti]

this is too stale to pick up in light of #269; opening again on top of main