File: exec-temporaryfilesystem-usr.service

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[Unit]
Description=Test for TemporaryFileSystem on /usr

[Service]
Type=oneshot

# Check TemporaryFileSystem= are empty
ExecStart=/bin/sh -c 'for i in $$(ls -A /usr); do test $$i = lib -o $$i = lib64 -o $$i = bin -o $$i = sbin || false; done'

# Cannot create files under /usr
ExecStart=/bin/sh -c '! touch /usr/hoge'
ExecStart=/bin/sh -c '! touch /usr/bin/hoge'

TemporaryFileSystem=/usr:ro
BindReadOnlyPaths=-/usr/lib -/usr/lib64 /usr/bin /usr/sbin