stdlib: docker: support running containers on the local docker engine

Depends on #570

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

tests/stdlib/docker/run/local/.dagger/env/default/.gitignore

@@ -0,0 +1,2 @@
+# dagger state
+state/**

tests/stdlib/docker/run/local/.dagger/env/default/plan/local.cue

@@ -0,0 +1,15 @@
+package docker
+
+import (
+	"dagger.io/docker"
+	"dagger.io/dagger"
+)
+
+TestRun: {
+	random: #Random & {}
+
+	run: docker.#Run & {
+		name: "daggerci-test-local-\(random.out)"
+		ref:  "hello-world"
+	}
+}

tests/stdlib/docker/run/local/.dagger/env/default/plan/random.cue

@@ -0,0 +1,33 @@
+package docker
+
+import (
+	"strconv"
+
+	"dagger.io/alpine"
+	"dagger.io/dagger/op"
+)
+
+#Random: {
+	size: *12 | number
+
+	out: {
+		string
+
+		#up: [
+			op.#Load & {from: alpine.#Image},
+
+			op.#Exec & {
+				always: true
+				args: ["sh", "-c", #"""
+					tr -cd '[:alpha:]' < /dev/urandom | fold -w "$SIZE" | head -n 1 | tr '[A-Z]' '[a-z]' | tr -d '\n' > /rand
+					"""#,
+				]
+				env: SIZE: strconv.FormatInt(size, 10)
+			},
+
+			op.#Export & {
+				source: "/rand"
+			},
+		]
+	}
+}

tests/stdlib/docker/run/local/.dagger/env/default/values.yaml

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+name: default
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1gxwmtwahzwdmrskhf90ppwlnze30lgpm056kuesrxzeuyclrwvpsupwtpk
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBpamtuNHB6NjY5L3VNT3hl
+            TGlmVFFoZURJR1RmZEFvSGUyVFRaSWNnSUMwClJiaDVGZWJoeDBMY21jZTVlREdS
+            aWg0SjNWN3BrTXRneXJyZy80K1JRSFUKLS0tIFEwKzdkVkNPT2VHTmtiOEdDQlZa
+            cnh2eHU5TzFjVkNvTzUyczFBL0pwTDQK60+wrLmTaD3Ws5ZAXdqBkMjaVP7Iz69k
+            UrkqkMbaUlvvSKK7dB5MuTGEEN6A1viAGal9ZjDHlSobkNPuE24QEA==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2021-06-04T23:50:06Z"
+    mac: ENC[AES256_GCM,data:GTsG9ekL5O04qwUSBb4hqRgQIiXL7keLXLt0gWpwLe0KUTu/JojAt0ALTiU8m5QWGy2q/avKIql8xR3SWWuBahOsKeObFbnx6PbVpU5QvZZKA8c72m2C+fDE82eKT3qZoTbwBEY3A/7v9BsFSCgkg3Hb91zVnBlXjiD949YAgP4=,iv:sYDEUDjyYJCoJFRP7EG19PTZgPaGa98gASs2B4fMAtE=,tag:CL5hhRG16EvuLwhPq5bdKQ==,type:str]
+    pgp: []
+    encrypted_suffix: secret
+    version: 3.7.1