Mercurial > sat_docs
comparison docker/base/scripts/add_host @ 105:b69056368901
docker: images optimisation:
- reduced the number of layers by grouping many instructions
- moved stuff which don't change a lot at the beginning, and hg/apt at the end
- scripts are not now in scripts/ subdirectories
- prosody.cfg.lua is added using ADD instead of getting it online
- .hg/dirstate is copied in base (backend) and libervia, so mercurial revision is known
- removed lot of useless WORKDIR instruction, they are replaced by "cd" inside RUN instructions
- cleaning (apt-clean, rm) is done on the same instruction as the one than generate the data, to avoid useless data in layers
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 28 Feb 2016 02:01:20 +0100 |
| parents | |
| children | 12cb931dbea0 |
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| 104:b59491821a8a | 105:b69056368901 |
|---|---|
| 1 #!/usr/bin/env python2 | |
| 2 # this script add aliases to /etc/hosts | |
| 3 import sys, re | |
| 4 | |
| 5 if len(sys.argv) < 2 or len(sys.argv) > 3: | |
| 6 sys.exit(1) | |
| 7 | |
| 8 host = sys.argv[1] | |
| 9 alias = sys.argv[2] if len(sys.argv) == 3 else "localhost" | |
| 10 | |
| 11 if host == "localhost" or host == alias: | |
| 12 sys.exit(0) | |
| 13 | |
| 14 print "Adding host {} as an alias of {}".format(host, alias) | |
| 15 with open("/etc/hosts", "r+") as f: | |
| 16 buf = re.sub(r"\\b{}\\b".format(alias), "{}\\t{}".format(alias, host), f.read(), 1) | |
| 17 f.seek(0) | |
| 18 f.write(buf) |