forked from M-Labs/it-infra
88 lines
3.1 KiB
Diff
88 lines
3.1 KiB
Diff
From d7fc00b5770a7d194c0ba9e70a4cdb2ece621d5b Mon Sep 17 00:00:00 2001
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From: Astro <astro@spaceboyz.net>
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Date: Mon, 5 Oct 2020 14:18:59 +0200
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Subject: [PATCH] networked derivations
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---
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src/libstore/build.cc | 19 ++++++++++++++-----
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1 file changed, 14 insertions(+), 5 deletions(-)
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diff --git a/src/libstore/build.cc b/src/libstore/build.cc
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index 0499273a4..40fe4e859 100644
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--- a/src/libstore/build.cc
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+++ b/src/libstore/build.cc
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@@ -845,9 +845,16 @@ private:
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/* The sort of derivation we are building. */
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DerivationType derivationType;
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+ bool networked;
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+
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/* Whether to run the build in a private network namespace. */
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bool privateNetwork = false;
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+ bool allowNetwork()
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+ {
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+ return derivationIsFixed(drv->type()) || networked;
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+ }
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+
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typedef void (DerivationGoal::*GoalState)();
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GoalState state;
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@@ -1293,6 +1300,8 @@ void DerivationGoal::haveDerivation()
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parsedDrv = std::make_unique<ParsedDerivation>(drvPath, *drv);
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+ networked = parsedDrv->getBoolAttr("__networked");
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+
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/* We are first going to try to create the invalid output paths
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through substitutes. If that doesn't work, we'll build
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them. */
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@@ -2210,7 +2219,7 @@ void DerivationGoal::startBuilder()
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else if (settings.sandboxMode == smDisabled)
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useChroot = false;
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else if (settings.sandboxMode == smRelaxed)
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- useChroot = !(derivationIsImpure(derivationType)) && !noChroot;
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+ useChroot = !allowNetwork() && !(derivationIsImpure(derivationType)) && !noChroot;
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}
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if (worker.store.storeDir != worker.store.realStoreDir) {
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@@ -2434,7 +2443,7 @@ void DerivationGoal::startBuilder()
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"nogroup:x:65534:\n") % sandboxGid).str());
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/* Create /etc/hosts with localhost entry. */
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- if (!(derivationIsImpure(derivationType)))
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+ if (!allowNetwork())
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writeFile(chrootRootDir + "/etc/hosts", "127.0.0.1 localhost\n::1 localhost\n");
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/* Make the closure of the inputs available in the chroot,
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@@ -2621,7 +2630,7 @@ void DerivationGoal::startBuilder()
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us.
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*/
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- if (!(derivationIsImpure(derivationType)))
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+ if (!allowNetwork())
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privateNetwork = true;
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userNamespaceSync.create();
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@@ -2833,7 +2842,7 @@ void DerivationGoal::initEnv()
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to the builder is generally impure, but the output of
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fixed-output derivations is by definition pure (since we
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already know the cryptographic hash of the output). */
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- if (derivationIsImpure(derivationType)) {
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+ if (allowNetwork()) {
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for (auto & i : parsedDrv->getStringsAttr("impureEnvVars").value_or(Strings()))
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env[i] = getEnv(i).value_or("");
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}
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@@ -3447,7 +3456,7 @@ void DerivationGoal::runChild()
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/* Fixed-output derivations typically need to access the
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network, so give them access to /etc/resolv.conf and so
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on. */
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- if (derivationIsImpure(derivationType)) {
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+ if (allowNetwork()) {
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ss.push_back("/etc/resolv.conf");
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// Only use nss functions to resolve hosts and
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--
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2.28.0
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