meta-networking-image-ptest: Add images to enable BBCLASSEXTEND parallel execution

In line with other layers like meta-oe, meta-python add capability to
run recipe ptests

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/conf/include/ptest-packagelists-meta-networking.inc

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+#
+# Lists of the ptest in meta-networking, sorted into two sets by the time they take
+# Please keep these sorted in alphabetical order
+#
+# A first pass at getting all meta-networking recipes which inherit ptest
+# meta_networking_ptest_recipes=$(bitbake-layers show-recipes --recipes-only --layer meta-networking --inherits ptest --bare | sed -e '1,/=== Matching recipes: ===/d')
+# ptests which take less than ~30s each
+
+PTESTS_FAST_META_NETWORKING = "\
+    geoip \
+    libcoap \
+    libldb \
+    libnftnl \
+    libtalloc \
+    libtdb \
+    lldpd \
+    mbedtls \
+    tcpdump \
+"
+
+PTESTS_SLOW_META_NETWORKING = "\
+    firewalld \
+    net-snmp \
+"
+
+PTESTS_PROBLEMS_META_NETWORKING = "\
+    freediameter \
+    geoip-perl \
+    libtevent \
+    lksctp-tools \
+    nftables \
+    openhpi \
+    openl2tp \
+    python3-scapy \
+    squid \
+"

meta-networking/recipes-core/images/meta-networking-image-ptest-all.bb

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+DESCRIPTION = "Recipe to trigger execution of all meta-networking ptest images."
+HOMEPAGE = "https://www.openembedded.org/"
+
+LICENSE = "MIT"
+
+inherit features_check nopackages
+REQUIRED_DISTRO_FEATURES = "ptest"
+
+require conf/include/ptest-packagelists-meta-networking.inc
+
+# Include the full set of ptests
+PTESTS_META_NETWORKING = "${PTESTS_FAST_META_NETWORKING} ${PTESTS_SLOW_META_NETWORKING} ${PTESTS_PROBLEMS_META_NETWORKING}"
+
+do_testimage[noexec] = "1"
+do_testimage[depends] = "${@' '.join(['meta-networking-image-ptest-'+x+':do_testimage' for x in d.getVar('PTESTS_META_NETWORKING').split()])}"
+
+do_build[depends] = "${@' '.join(['meta-networking-image-ptest-'+x+':do_build' for x in d.getVar('PTESTS_META_NETWORKING').split()])}"
+
+# normally image.bbclass would do this
+EXCLUDE_FROM_WORLD = "1"
+
+python () {
+    if bb.utils.contains('IMAGE_CLASSES', 'testimage', True, False, d):
+        bb.build.addtask("do_testimage", "", "", d)
+}

meta-networking/recipes-core/images/meta-networking-image-ptest-fast.bb

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+require meta-networking-image-ptest-all.bb
+
+DESCRIPTION = "Recipe to trigger execution of all fast meta-networking ptest images."
+
+PTESTS_META_NETWORKING = "${PTESTS_FAST_META_NETWORKING}"

meta-networking/recipes-core/images/meta-networking-image-ptest.bb

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+inherit features_check
+REQUIRED_DISTRO_FEATURES = "ptest"
+
+require recipes-core/images/core-image-minimal.bb
+require conf/include/ptest-packagelists-meta-networking.inc
+
+SUMMARY = "meta-networking ptest test image"
+
+DESCRIPTION += "Also including the ${MCNAME} ptest package."
+HOMEPAGE = "https://www.openembedded.org/"
+
+PTESTS_META_NETWORKING = "${PTESTS_SLOW_META_NETWORKING} ${PTESTS_FAST_META_NETWORKING} ${PTESTS_PROBLEMS_META_NETWORKING}"
+
+IMAGE_INSTALL:append = " ${MCNAME}-ptest openssh"
+
+BBCLASSEXTEND = "${@' '.join(['mcextend:'+x for x in d.getVar('PTESTS_META_NETWORKING').split()])}"
+
+# The image can be sufficiently large (~1.8GB) that we need to be careful that it fits in a live
+# image (which has a 4GB limit), so nullify the overhead factor (1.3x out of the
+# box) and explicitly add up to 1500MB.
+IMAGE_OVERHEAD_FACTOR = "1.0"
+IMAGE_ROOTFS_EXTRA_SPACE = "324288"
+# If a particular ptest needs more space, it can be customized:
+#IMAGE_ROOTFS_EXTRA_SPACE:virtclass-mcextend-<pn> = "1024288"
+
+# ptests need more memory than standard to avoid the OOM killer
+QB_MEM = "-m 1024"
+# If a particular ptest needs more memroy, it can be customized:
+#QB_MEM:virtclass-mcextend-<pn> = "-m 4096"
+
+TEST_SUITES = "ping ssh parselogs ptest"
+
+# Sadly at the moment the full set of ptests is not robust enough and sporadically fails in random places
+PTEST_EXPECT_FAILURE = "1"
+
+python () {
+    if not d.getVar("MCNAME"):
+        raise bb.parse.SkipRecipe("No class extension set")
+}
+