Implemented basic unit tests

tests/test_node_deployer/data/config.ign

@@ -0,0 +1,76 @@
+{
+  "ignition": {
+    "version": "3.2.0"
+  },
+  "passwd": {
+    "users": [
+      {
+        "name": "root",
+        "passwordHash": "$2a$08$YdxsvKFRc1q2S1lmVixm5Oel3Y2oCNAsx9Sh2Dx4pL/udApPzUQu6"
+      }
+    ]
+  },
+  "storage": {
+    "files": [
+      {
+        "path": "/root/join_swarm.json",
+        "mode": 420,
+        "overwrite": true,
+        "contents": {
+          "source": "data:text/plain;charset=utf-8;base64,eyJTV0lUQ0hfSVBfQUREUkVTUyI6ICIxOTIuMTY4LjEuMSIsICJTV0lUQ0hfUE9SVCI6IDQyLCAiU1dBUk1fVE9LRU4iOiAiU1dNVEtOLTEtVEhJU0lTQVRFU1RTV0FSTVRPS0VORk9SVEVTVElOR1BVUlBPU0VTQU5EVEhBVE1FQU5TSVRORUVEU1RPQkVRVUlURUxPTkcifQ=="
+        }
+      },
+      {
+        "path": "/root/join_swarm.sh",
+        "mode": 420,
+        "overwrite": true,
+        "contents": {
+          "source": "data:text/plain;charset=utf-8;base64,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"
+        }
+      },
+      {
+        "path": "/etc/hostname",
+        "mode": 420,
+        "overwrite": true,
+        "contents": {
+          "source": "data:,test_hostname"
+        }
+      },
+      {
+        "path": "/etc/NetworkManager/system-connections/eth0.nmconnection",
+        "mode": 384,
+        "overwrite": true,
+        "contents": {
+          "source": "data:text/plain;charset=utf-8;base64,Cltjb25uZWN0aW9uXQppZD1ldGgwCnR5cGU9ZXRoZXJuZXQKaW50ZXJmYWNlLW5hbWU9ZXRoMAoKW2lwdjRdCmRucy1zZWFyY2g9Cm1ldGhvZD1hdXRvCgpbaXB2Nl0KZG5zLXNlYXJjaD0KYWRkci1nZW4tbW9kZT1ldWk2NAptZXRob2Q9YXV0bwo=",
+          "human_read": "\n[connection]\nid=eth0\ntype=ethernet\ninterface-name=eth0\n\n[ipv4]\ndns-search=\nmethod=auto\n\n[ipv6]\ndns-search=\naddr-gen-mode=eui64\nmethod=auto\n"
+        }
+      },
+      {
+        "path": "/etc/NetworkManager/conf.d/noauto.conf",
+        "mode": 420,
+        "overwrite": true,
+        "contents": {
+          "source": "data:text/plain;charset=utf-8;base64,W21haW5dCiMgRG8gbm90IGRvIGF1dG9tYXRpYyAoREhDUC9TTEFBQykgY29uZmlndXJhdGlvbiBvbiBldGhlcm5ldCBkZXZpY2VzCiMgd2l0aCBubyBvdGhlciBtYXRjaGluZyBjb25uZWN0aW9ucy4Kbm8tYXV0by1kZWZhdWx0PSoK",
+          "human_read": "[main]\n# Do not do automatic (DHCP/SLAAC) configuration on ethernet devices\n# with no other matching connections.\nno-auto-default=*\n"
+        }
+      }
+    ]
+  },
+  "systemd": {
+    "units": [
+      {
+        "name": "cockpit.socket.service",
+        "enabled": true
+      },
+      {
+        "name": "docker.service",
+        "enabled": true
+      },
+      {
+        "name": "join_swarm.service",
+        "enabled": false,
+        "contents": "[Unit]\nDescription=Ensure that node joins a swarm on startup\n\n[Service]\nExecStart=/root/join_swarm.sh\n\n[Install]\nWantedBy=multi-user.target"
+      }
+    ]
+  }
+}

tests/test_node_deployer/data/fuelignition.json

@@ -0,0 +1,65 @@
+{
+    "login": {
+        "users": [
+            {
+                "name": "root"
+            }
+        ]
+    },
+    "network": {
+        "interfaces": [
+            {
+                "name": "eth0",
+                "ipv4": {
+                    "network_type": "DHCP",
+                    "auto_dns_enabled": true
+                },
+                "ipv6": {
+                    "network_type": "DHCP",
+                    "auto_dns_enabled": true
+                }
+            }
+        ]
+    },
+    "systemd": {
+        "units": [
+            {
+                "name": "cockpit.socket.service",
+                "enabled": "yes"
+            },
+            {
+                "name": "docker.service",
+                "enabled": "yes"
+            },
+            {
+                "name": "join_swarm.service",
+                "enabled": true,
+                "contents": "[Unit]\nDescription=Ensure that node joins a swarm on startup\n\n[Service]\nExecStart=/root/join_swarm.sh\n\n[Install]\nWantedBy=multi-user.target"
+            }
+        ]
+    },
+    "package": {
+        "install": [
+            "patterns-microos-cockpit, docker, jq"
+        ]
+    },
+    "hostname": "test_hostname",
+    "storage": {
+        "files": [
+            {
+                "path": "/root/join_swarm.json",
+                "source_type": "data",
+                "mode": 420,
+                "overwrite": true,
+                "data_content": "{\"SWITCH_IP_ADDRESS\": \"192.168.1.1\", \"SWITCH_PORT\": 42, \"SWARM_TOKEN\": \"SWMTKN-1-THISISATESTSWARMTOKENFORTESTINGPURPOSESANDTHATMEANSITNEEDSTOBEQUITELONG\"}"
+            },
+            {
+                "path": "/root/join_swarm.sh",
+                "source_type": "data",
+                "mode": 420,
+                "overwrite": true,
+                "data_content": "#!/bin/bash\n\nif [[ $EUID -ne 0 ]]; then\n   echo \"This script must be run as root\" \n   exit 1\nfi\n\n# Load the config file into variables\neval \"$(jq -r 'to_entries[] | \"export \\(.key)=\\(.value | @sh)\"' /root/join_swarm.json)\"\n\nif [[ $(docker info | grep Swarm | awk '{print $2}') == \"inactive\" ]]; then\n    docker swarm join --token $SWARM_TOKEN [$SWITCH_IP_ADDRESS]:$SWITCH_PORT\nelse\n    echo \"This node is already part of a swarm\"\n    docker info -f json | jq .Swarm\nfi\n"
+            }
+        ]
+    }
+}