Merge branch 'master' of github.com:containers/podman-compose into devel

tests/ulimit/Dockerfile

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+FROM busybox
+
+COPY ./ulimit.sh /bin/ulimit.sh

tests/ulimit/docker-compose.yaml

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+version: "3"
+services:
+    ulimit1:
+      image: ulimit_test
+      command: ["ulimit.sh" ]
+      ulimit: nofile=1001
+      build: 
+        context: ./
+        dockerfile: Dockerfile
+    ulimit2:
+      image: ulimit_test
+      command: ["ulimit.sh" ]
+      ulimit:
+      - nproc=1002:2002
+      - nofile=1002
+      build:
+        context: ./
+        dockerfile: Dockerfile
+    ulimit3:
+      image: ulimit_test
+      command: [ "ulimit.sh" ]
+      ulimit:
+        nofile: 1003
+        nproc:
+          soft: 1003
+          hard: 2003
+      build:
+        context: ./
+        dockerfile: Dockerfile
+

tests/ulimit/ulimit.sh

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+#!/bin/sh
+
+echo "soft process limit"
+ulimit -S -u
+echo "hard process limit"
+ulimit -H -u
+echo "soft nofile limit"
+ulimit -S -n
+echo "hard nofile limit"
+ulimit -H -n