kubernetes_icon)
with Cluster("K8s Destroying Pipeline"):
destroyServersStage = Custom("Destroy Servers", terraform_icon)
with Cluster("Hetzner Cloud"):
with Cluster("WireGuard VPN"):
with Cluster("Kubernetes Cluster"):
masterNodes = Master("N masters")
workerNodes = Node("N workers")
with Cluster("System Application"):
argoCd = Argocd("Argo CD")
sealedSecrets = Custom("Sealed Secrets", bitnami_icon)
metallb = Custom("Metal LB", metallb_icon)
certManager = Custom("Cert Manager", cert_manager_icon)
istio = Istio("Istio")
storage = StorageClass("HCloud CSI")
loki = Custom("Loki", loki_icon)
createServersStage >> deployClusterStage >> deployComponentsStage
createServersStage >> masterNodes
deployClusterStage >> masterNodes
deployComponentsStage >> argoCd
deployComponentsStage >> sealedSecrets
deployClusterStage >> metallb
masterNodes - workerNodes
createServersStage >> cloudFlare
createServersStage >> wasabi
destroyServersStage >> cloudFlare
destroyServersStage >> wasabi
destroyServersStage >> masterNodes
# kubernetes-diagram.py
# run the cmd: python3 cyri-lan-archi-diagram.py to generate the png file.
from diagrams import Cluster, Diagram
from diagrams.generic.network import Switch, Router
from diagrams.generic.storage import Storage
from diagrams.k8s.compute import Pod
from diagrams.k8s.network import Ingress, Service
from diagrams.k8s.storage import PV, PVC, StorageClass
from diagrams.elastic.elasticsearch import Elasticsearch, Logstash, Kibana
from diagrams.oci.connectivity import DNS
from diagrams.onprem.compute import Server, Nomad
with Diagram("Kubernetes Diagram", show=False):
synology = DNS("reverse DNS")
with Cluster("RaspberryPi4 + K3S"):
ingress = Ingress("cyri.intra")
svc = Service("services")
pvc = PVC("pv claim")
with Cluster("apps"):
logstash = Logstash("logstash-oss")
elasticsearch = Elasticsearch("elasticsearch")
squid = Server("squid")
elk = [elasticsearch - logstash - Kibana("kibana")]
with Cluster("local-storage"):
pv = [StorageClass("storage class") >> PV("persistent volume")]
k8s = ingress >> svc
k8s >> squid >> pvc << pv
k8s >> logstash >> pvc << pv
synology << ingress
from diagrams import Cluster, Diagram
from diagrams.k8s.compute import Pod, DaemonSet
from diagrams.k8s.storage import PV, PVC, StorageClass
with Diagram("Persistent Storage for a Pod", show=False):
with Cluster("k8s"):
pod = Pod("d1")
pvc = PVC("pvc-1")
pv = PV("pvc-[uuid]")
sc = StorageClass("fast")
ds = DaemonSet("StorageOS")
pod >> pvc << pv << sc >> ds
from diagrams import Cluster, Diagram
from diagrams.k8s.compute import Pod, StatefulSet
from diagrams.k8s.network import Service
from diagrams.k8s.storage import PV, PVC, StorageClass
with Diagram("Stateful Architecture", show=False):
with Cluster("Apps"):
svc = Service("svc")
sts = StatefulSet("sts")
apps = []
for _ in range(3):
pod = Pod("pod")
pvc = PVC("pvc")
pod - sts - pvc
apps.append(svc >> pod >> pvc)
apps << PV("pv") << StorageClass("sc")
from diagrams import Cluster, Diagram, Edge
from diagrams.k8s.compute import Pod, DaemonSet
from diagrams.k8s.storage import PV, PVC, StorageClass
with Diagram("Persistent Storage with replica for a Pod", show=False):
with Cluster("k8s"):
pod = Pod("d2")
pvc = PVC("pvc-2")
pv1 = PV("pvc-[uuid] (primary)")
pv2 = PV("pvc-[uuid] (replica)")
sc = StorageClass("storageos-rep-1")
ds = DaemonSet("StorageOS")
pod >> pvc
pvc << pv1 << sc
pvc - Edge(color="red", style="dotted") - pv2
pv2 - Edge(color="brown", style="dotted") - sc
sc >> ds
pgpool_replica_set_count = 1
pgpool_pods = [
Pod("Pgpool Pod")
for pod in range(0, pgpool_replica_set_count, 1)
]
pgpool_svc = Service("Pgpool Service")
# Relationships
pgpool_dep >> pgpool_rs >> pgpool_pods << pgpool_svc
# PostgreSQL
# Resources
db_sset = StatefulSet("PostgreSQL StatefulSet")
db_stateful_set_count = 3
db_svc = Service("DB Service")
sc = StorageClass("Storage Class (SSD)")
db_pods = []
for _ in range(db_stateful_set_count):
db_pod = Pod("DB Pod")
db_pvc = PersistentVolumeClaim("DB PVC")
db_pv = PersistentVolume("DB PV")
# Relationships
sc << db_pv << db_pvc << db_pod >> db_sset
db_pods.append(db_pod << db_svc)
# Relationships
app_pods << app_svc_int << app_lb_int << app_fw
# app_pods >> pgpool_svc # Not rendered since the diagram is busy enough
with Diagram("TRM Exercise Overview", show=False):